vieiro.net

Sunday, September 23, 22:29 UTC @ John D. Cook

Fermat’s little theorem says that if p is a prime and a is not a multiple of p, then ap-1 = 1 (mod p). Euler’s generalization of Fermat’s little theorem says that if a is relatively prime to m, then aφ(m) = 1 (mod p) where φ(m) is Euler’s so-called totient function. This function counts the number of positive […]

Sunday, September 23, 20:14 UTC @ Hacker News: Newest

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Sunday, September 23, 18:11 UTC @ Hacker Noon - Medium

Sunday, September 23, 15:26 UTC @ Hacker Noon - Medium

Sunday, September 23, 13:48 UTC @ joe cieplinski

Fall is here, and that means it’s time for yet another chapter in Joe’s Adventures of Getting His iTunes Music Collection onto His New iPhone. Don’t worry: This one has a mostly happy ending. Long-time readers will recall past issues with getting my music situation settled on

Sunday, September 23, 08:35 UTC @ Hacker News: Newest

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Sunday, September 23, 00:35 UTC @ Hacker News: Newest

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Saturday, September 22, 23:37 UTC @ Hacker News: Newest

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Saturday, September 22, 19:35 UTC @ Daring Fireball

Tripp Mickle and Joe Flint, reporting for the WSJ: Tim Cook sat down more than a year ago to watch Apple Inc.’s first scripted drama, “Vital Signs,” and was troubled by what he saw. The show, a dark, semi-biographical tale of hip hop artist Dr. Dre, featured characters doing lines of cocaine, an extended orgy in a mansion and drawn guns. It’s too violent, Mr. Cook told Apple Music executive Jimmy Iovine, said people familiar with Apple’s entertainment plans. Apple can

Saturday, September 22, 19:21 UTC @ Hacker News: Newest

I love building small tools which solve problems I myself face in my day to day life. Having been worked in different companies over the last 4 years, I feel I've acquired enough knowledge to develop big applications(big enough to make money) on my own.I was wondering, how one can come up with side project ideas which can generate few hundred dollars per month on the side. Any inputs, resources and wisdom are appreciated! Comments URL:

Saturday, September 22, 18:54 UTC @ Hacker News: Newest

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Saturday, September 22, 17:54 UTC @ Hacker News: Newest

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Saturday, September 22, 16:52 UTC @ Hacker News: Newest

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Saturday, September 22, 15:10 UTC @ Hacker News: Newest

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Saturday, September 22, 14:18 UTC @ Hacker News: Newest

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Saturday, September 22, 09:34 UTC @ Hacker News: Newest

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Saturday, September 22, 05:36 UTC @ Hacker News: Newest

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Saturday, September 22, 02:18 UTC @ Hacker News: Newest

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Saturday, September 22, 02:17 UTC @ Hacker News: Newest

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Saturday, September 22, 01:33 UTC @ Hacker News: Newest

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Friday, September 21, 23:28 UTC @ Hacker News: Newest

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Friday, September 21, 22:54 UTC @ Hacker News: Newest

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Friday, September 21, 22:14 UTC @ Hacker News: Newest

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Friday, September 21, 22:10 UTC @ The Search for Planet Nine

Greetings! My name is Elizabeth Bailey, and I am a graduate student here at Caltech. As part of my work so far, I have addressed the ongoing search for Planet Nine, in particular the use of mean-motion resonances to infer its present-day location on the sky.

Friday, September 21, 21:51 UTC @ Hacker News: Newest

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Friday, September 21, 21:47 UTC @ Hacker News: Newest

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Friday, September 21, 21:30 UTC @ Complex Projective 4-Space

At the Heidelberg Laureate Forum three years ago, I took lots of selfies with Fields medallists, Abel prizewinners and Turing laureates. This included having a dinner in a castle with Leonard Adleman, pioneer of asymmetric cryptography: …and Endre Szemeredi of … Continue reading →

Friday, September 21, 18:53 UTC @ Signal v. Noise - Medium

Friday, September 21, 18:20 UTC @ Daring Fireball

As promised, here’s a selection of photos and videos taken with iPhone XS and iPhone X side-by-side. The low-light video clips are just amazing. And audio quality is remarkably better in all video. ★

Friday, September 21, 17:46 UTC @ TED Blog

Their ideas are ambitious, with the goal of changing outdated systems and impacting millions of lives. It’s been five months since The Audacious Project’s first class of project leaders spoke at TED2018, and each one is gaining momentum. Below, the latest news. 1,600 bails paid and counting More than 1,600 people have now had their bail paid […]

Friday, September 21, 17:25 UTC @ The Apache Software Foundation Blog

As another week draws to a close, let's take a look at the Apache community's activities from the past week: ASF Board –management and oversight of the business affairs of the corporation in accordance with the Foundation's bylaws. - The Apache Software Foundation Operations Summary: May - July 2018 https://... - Next Board Meeting: 17 October. Board calendar and minutes

Friday, September 21, 15:03 UTC @ Y Combinator

YC Partner Geoff Ralston talks to Cowboy Ventures Founder Aileen Lee.

Friday, September 21, 08:24 UTC @ Gödel’s Lost Letter and P=NP

When has a strikingly simple proof come first? Cropped from London Times 2017 source Michael Atiyah is giving a lecture next Monday morning at the Heidelberg Laureate Forum (HLF). It is titled, simply, “The Riemann Hypothesis.” An unsourced image of his abstract says what his title does not: that he is claiming not only a […]

Friday, September 21, 08:00 UTC @ FreeBSD News Flash

Friday, September 21, 01:30 UTC @ cs.DS updates on arXiv.org

Group testing is the process of pooling arbitrary subsets from a set of $n$ items so as to identify, with a minimal number of tests, a "small" subset of $d$ defective items. In "classical" non-adaptive group testing, it is known that when $d$ is substantially smaller than $n$, $\Theta(d\log(n))$ tests are both information-theoretically necessary and sufficient to guarantee recovery with high probability. Group testing schemes in the literature meeting this bound require most items to be tested $\Omega(\l

Friday, September 21, 01:30 UTC @ cs.DS updates on arXiv.org

An important question that arises in the study of high dimensional vector representations learned from data is: given a set $\mathcal{D}$ of vectors and a query $q$, estimate the number of points within a specified distance threshold of $q$. We develop two estimators, LSH Count and Multi-Probe Count that use locality sensitive hashing to preprocess the data to accurately and efficiently estimate the answers to such questions via importance sampling. A key innovation is the ability to maintain a small num

Friday, September 21, 01:30 UTC @ cs.DS updates on arXiv.org

We study a recently introduced generalization of the Vertex Cover (VC) problem, called Power Vertex Cover (PVC). In this problem, each edge of the input graph is supplied with a positive integer demand. A solution is an assignment of (power) values to the vertices, so that for each edge one of its endpoints has value as high as the demand, and the total sum of power values assigned is minimized. We investigate how this generalization affects the parameterized complexity of Vertex Cover. On the positive s

Friday, September 21, 01:30 UTC @ cs.DS updates on arXiv.org

We study polynomial time algorithms for estimating the mean of a random vector $X$ in $\mathbb{R}^d$ from $n$ independent samples $X_1,\ldots,X_n$ when $X$ may be heavy-tailed. We assume only that $X$ has finite mean $\mu$ and covariance $\Sigma$. In this setting, the radius of confidence intervals achieved by the empirical mean are large compared to the case that $X$ is Gaussian or sub-Gaussian. In particular, for confidence $\delta > 0$, the empirical mean has confidence intervals with radius of ord

Friday, September 21, 01:30 UTC @ cs.DS updates on arXiv.org

Huge scale machine learning problems are nowadays tackled by distributed optimization algorithms, i.e. algorithms that leverage the compute power of many devices for training. The communication overhead is a key bottleneck that hinders perfect scalability. Various recent works proposed to use quantization or sparsification techniques to reduce the amount of data that needs to be communicated, for instance by only sending the most significant entries of the stochastic gradient (top-k sparsification). Whil

Friday, September 21, 01:30 UTC @ cs.DS updates on arXiv.org

Let $P$ be a simple polygon of $n$ vertices. We consider two-point $L_1$ shortest path queries in $P$. We build a data structure of $O(n)$ size in $O(n)$ time such that given any two query points $s$ and $t$, the length of an $L_1$ shortest path from $s$ to $t$ in $P$ can be computed in $O(\log n)$ time, or in $O(1)$ time if both $s$ and $t$ are vertices of $P$, and an actual shortest path can be output in additional linear time in the number of edges of the path. To achieve the result, we propose a moun

Friday, September 21, 01:30 UTC @ cs.DS updates on arXiv.org

A choice dictionary can be initialized with a parameter $n\in\mathbb{N}$ and subsequently maintains an initially empty subset $S$ of $\{1,\ldots,n\}$ under insertion, deletion, membership queries and an operation $\textit{choice}$ that returns an arbitrary element of $S$. The choice dictionary is fundamental in space-efficient computing and has numerous applications. The best previous choice dictionary can be initialized with $n$ and $t\in\mathbb{N}$ and subsequently executes all operations in $O(t)$ tim

Friday, September 21, 01:30 UTC @ cs.DS updates on arXiv.org

The advent of high-throughput sequencing has resulted in massive genomic datasets, some consisting of assembled genomes but others consisting of raw reads. We consider how to reduce the amount of space needed to index a set of reads, in particular how to reduce the number of runs in the Burrows-Wheeler Transform (BWT) that is the basis of FM-indexing. The best current fully-functional index for repetitive collections (Gagie et al., SODA 2018) uses space proportional to this number.

Friday, September 21, 01:30 UTC @ cs.DS updates on arXiv.org

We consider the problem of encoding two-dimensional arrays, whose elements come from a total order, for answering top-k queries. The aim is to obtain encodings that use space close to the information-theoretic lower bound, which can be constructed efficiently. For $2 \times n$ arrays, we first give upper and lower bounds on space for answering sorted and unsorted 3-sided top-k queries. For $m \times n$ arrays, with $m \le n$ and $k \le mn$, we obtain $(m\lg{{(k+1)n \choose n}}+4nm(m-1)+o(n))$-bit encodin

Friday, September 21, 01:30 UTC @ cs.CC updates on arXiv.org

Sparse structures are frequently sought when pursuing tractability in optimization problems. They are exploited from both theoretical and computational perspectives to handle complex problems that become manageable when sparsity is present. An example of this type of structure is given by treewidth: a graph theoretical parameter that measures how "tree-like" a graph is. This parameter has been used for decades for analyzing the complexity of various optimization problems and for obtaining tractable algor

Thursday, September 20, 23:33 UTC @ Daring Fireball

Regarding two technical issues at Daring Fireball, and a paean to Cloudflare.

Thursday, September 20, 22:52 UTC @ composition.al

Hi, friends! This fall will be my first quarter teaching at UC Santa Cruz! I’m very excited to announce that this fall I’m teaching a graduate seminar on one of my favorite topics: languages and abstractions for programming distributed systems. Here’s an “official” course description: This graduate seminar course explores the theory a

Thursday, September 20, 21:53 UTC @ John D. Cook

There have been a couple news stories regarding proofs of major theorems. First, an update on Shinichi Mochizuki’s proof of the abc conjecture, then an announcement that Sir Michael Atiyah claims to have proven the Riemann hypothesis. Shinichi Mochizuki’s proof of the abc conjecture Quanta Magazine has a story today saying that two mathematicians have […]

Thursday, September 20, 20:32 UTC @ Azimuth

Sometimes patterns can lead you astray. For example, it’s known that is a good approximation to the number of primes less than or equal to Numerical evidence suggests that is always greater than For example, and But in 1914, Littlewood heroically showed that in fact, changes sign infinitely many times! This raised the question: when […]

Thursday, September 20, 20:06 UTC @ Daring Fireball

Henry Chu, reporting for Variety: Cary Joji Fukunaga will direct the new James Bond film, the producers announced Thursday. The 25th Bond installment will begin filming in London, at Pinewood Studios, on March 4, 2019, with a worldwide release on Feb. 14, 2020, a few months after its original target date. Fukunaga, who won acclaim for 2015 war film “Beasts of No Nation,” replaces Danny Boyle, who exited the project last month over creative differences with producers Barbara

Thursday, September 20, 19:11 UTC @ Not Even Wrong

As discussed here a couple months ago, Peter Scholze and Jakob Stix believe they have found a serious problem with Mochizuki’s claimed proof of the abc conjecture, and traveled to Kyoto in March to discuss it with him. Their write-up … Continue reading →

Thursday, September 20, 18:39 UTC @ Daring Fireball

Wired: To test the new hardware, we gave an iPhone XS Max to the film director Jon M. Chu. The Crazy Rich Asians director shot a short film for Wired, and the results are truly special. “I had literally zero equipment,” says Chu. “I see a lot of samples of iPhone videos, and sometimes they use different lenses or professional lights. I didn’t have any of that.” Chu shot the film — a view into dancer Luigi Rosado’s rehear

Thursday, September 20, 18:30 UTC @ Quanta Magazine

Two mathematicians have found what they say is a hole at the heart of a proof that has convulsed the mathematics community for nearly six years.

Thursday, September 20, 17:58 UTC @ Daring Fireball

Stephen Pulvirent, Hodinkee: Apple isn’t exactly a company known for offering frequent peeks behind the proverbial curtain. Having just reviewed the new Apple Watch Series 4, getting to see how Apple made the incredible “motion faces” (the vapor, fire/water, etc.) feels like an extra treat. Getting this kind of perspective though shows just how dedicated the team over there is to nailing the

Thursday, September 20, 17:55 UTC @ Daring Fireball

Frank Bajak and Raphael Satter Sen. Ron Wyden, an Oregon Democrat, said in a Wednesday letter to Senate leaders that his office discovered that “at least one major technology company” has warned an unspecified number of senators and aides that their personal email accounts were “targeted by foreign government hackers.” Similar methods were employed by Russian military agents w

Thursday, September 20, 17:36 UTC @ Y Combinator

We’re excited to announce Early Decision for 2019. Similar to what many colleges allow, we’ll be offering undergrad and graduate students the chance to apply one batch early.

Thursday, September 20, 17:15 UTC @ John D. Cook

Numberphile has a nice video on the fifth root trick: someone raises a two-digit number to the 5th power, reads the number aloud, and you tell them immediately what the number was. Here’s the trick in a nutshell. For any number n, n5 ends in the same last digit as n. You could prove that […]

Thursday, September 20, 16:01 UTC @ The Apache Software Foundation Blog

Joins ASF Platinum Sponsors Cloudera, Comcast, Facebook, Google, LeaseWeb, Microsoft, Oath, and Pineapple Fund in supporting the ASF's Mission of Providing Software For the Public Good Wakefield, MA —20 September 2018— The Apache® Software Foundation (ASF), the all-volunteer developers, stewards, and incubators of more than 350 Open Source projects and initiatives, announced today sponsorship by Tencent at the Platinum level. Tencent is the first company f

Thursday, September 20, 13:19 UTC @ Quanta Magazine

A visual prank exposes an Achilles’ heel of computer vision systems: Unlike humans, they can’t do a double take.

Thursday, September 20, 12:19 UTC @ Computational Complexity

Recently I talked with Ehsan Hoque, one of the authors of the ACM Future of Computing Academy report that suggested "Peer reviewers should require that papers and proposals rigorously consider all reasonable broader impacts, both positive and negative." which I had satirized last May. Ehsan said that "if email had sender authentication built

Thursday, September 20, 00:34 UTC @ John D. Cook

The Goldbach conjecture says that every even number bigger than 2 is the sum of two primes. I imagine he tried out his idea on numbers up to a certain point and guessed that he could keep going. He lived in the 18th century, so he would have done all his calculation by hand. What […]

Wednesday, September 19, 17:39 UTC @ Daring Fireball

The Series 4 Apple Watch is defined by being a nicer watch.

Wednesday, September 19, 16:25 UTC @ TED Blog

On September 12, TED welcomed its latest class to the TED Residency program, an in-house incubator for breakthrough ideas. These 21 Residents will spend 14 weeks in TED’s New York headquarters working and thinking together. The class includes exceptional people from all over the map — from Bulgaria to South Africa, Canada to Kansas. New […]

Wednesday, September 19, 16:00 UTC @ Y Combinator

YC Partner Kat Manalac and Director of Marketing Craig Cannon describe the most effective ways to use PR and content to help your companies brand and to find more users.

Wednesday, September 19, 15:59 UTC @ Y Combinator

Former YC partner Garry Tan, the cofounder of Initialized Capital and a design expert describes how to effectively integrate design into a product development process.

Wednesday, September 19, 14:25 UTC @ Quanta Magazine

Astronomers have known where the universe’s missing matter has been hiding for the past 20 years. So why did it take so long to find it?

Wednesday, September 19, 13:41 UTC @ John D. Cook

John Baez left a comment on my post on group statistics saying It’s known that the number of groups of order p^n for prime p is p^{2n^3/27+O(n^(8/3))}. It might be fun to compare this to what Mathematica says. Here goes. First let’s let p = 2. Mathematica’s FiniteGroupCount function tops out at n = 10. And […]

Wednesday, September 19, 10:01 UTC @ Backreaction

I’ve done it again. This times I layered up to nine copies of myself. I have also squeaked out a high D, drawn a space ship that looks like a crossover of shark and saucer, and bought a new lipstick. But really the biggest improvement comes from me finally replacing my crappy camcorder with a mid-tier camera, which is why you can now enjoy all my wrinkles and pimples in unprecedented clarity.

Wednesday, September 19, 10:01 UTC @ Backreaction

I’ve done it again. This times I layered up to nine copies of myself. I have also squeaked out a high D, drawn a space ship that looks like a crossover of shark and saucer, and bought a new lipstick. But really the biggest improvement comes from me finally replacing my crappy camcorder with a mid-tier camera, which is why you can now enjoy all my wrinkles and pimples in unprecedented clarity.

Wednesday, September 19, 09:18 UTC @ Business of Software USA

Chris Savage, CEO/Co-Founder, Wistia Recently, Wistia turned down the offer to sell the company and instead took on $17m of debt – seemingly a strange move. Why? Because Wistia are in it for the long run – they want to run their business their way. We spoke to Chris Savage, Wistia’s CEO & Co-Founder, about […] The post Why We Didn’t Sell Wistia | Hangout Replay w

Wednesday, September 19, 06:11 UTC @ Daring Fireball

In my iPhone XS review yesterday, I incorrectly stated that the “f-stop” editing for Portrait Mode shots could only be done on an iPhone XS. I was wrong, but it wasn’t too dumb of a mistake. Go read my update, and if you read my review yesterday soon after I published it, make sure you’ve seen footnote 5.

Tuesday, September 18, 19:02 UTC @ Azimuth

Tai-Danae Bradley has a new free “booklet” on applied category theory. It was inspired by the workshop Applied Category Theory 2018, which she attended, and I think it makes a great complement to Fong and Spivak’s book Seven Sketches and my online course based on that book: • Tai-Danae Bradley, What is Applied Category Theory? […]

Tuesday, September 18, 18:05 UTC @ La Ciencia de la Mula Francis

He participado en el episodio 179 del podcast Coffee Break: Señal y Ruido [iVoox, iTunes], titulado “Cosmología de Penrose; Alcohol y Salud; Desintegración del Higgs; Híbridos Humanos; ¿Inversión Temporal en GRBs?”, 06 Sep 2018. “La tertulia semanal ha repasado […]

Tuesday, September 18, 16:40 UTC @ John D. Cook

How do you keep things you don’t want out of your Twitter stream? You might say just don’t follow people who post things you don’t want to read, but it’s not that simple. Some people post worthwhile original material, but they retweet things that are offensive or just not interesting. You can fix that by […]

Tuesday, September 18, 16:31 UTC @ La Ciencia de la Mula Francis

La partícula de Higgs tiene una masa de 125 GeV/c². Para estudiar su física en detalle se requiere una fábrica de bosones Higgs, un colisionador de leptones con una energía de colisión en el centro de masas de unos […] Leer más

Tuesday, September 18, 16:00 UTC @ Planet Clang

The LLVM Foundation is pleased to announce its new Board of Directors: Chandler Carruth Mike Edwards (Treasurer) Hal Finkel Arnaud de Grandmaison Anton Korobeynikov Tanya Lattner (President) Chris Lattner John Regehr (Secretary) Tom Stellard Two new members and seven continuing members were elected to the nine person board. We want to thank David Kipping for his 2 terms on the board. David has been actively involved with the LLVM Developer Meetings and was the treasurer for the past 4 years. The treasurer i

Tuesday, September 18, 14:46 UTC @ ACM Queue - All Queue Content

If you want to be successful, then it serves you better to rise to the occasion no matter what. That means learning how to push through challenges and deliver valuable results.

Tuesday, September 18, 14:31 UTC @ Quanta Magazine

Machine learning techniques are commonly based on how the visual system processes information. To beat their limitations, scientists are drawing inspiration from the sense of smell.

Tuesday, September 18, 14:00 UTC @ John D. Cook

I just ran across FiniteGroupData and related functions in Mathematica. That would have made some of my earlier posts easier to write had I used this instead of writing my own code. Here’s something I find interesting. For each n, look at the groups of order at most n and count how many are Abelian […]

Tuesday, September 18, 13:56 UTC @ Daring Fireball

One phone in two sizes. It’s all about the camera.

Tuesday, September 18, 04:00 UTC @ This Week in Rust

Hello and welcome to another issue of This Week in Rust! Rust is a systems language pursuing the trifecta: safety, concurrency, and speed. This is a weekly summary of its progress and community. Want something mentioned? Tweet us at @ThisWeekInRust or send us a pull request. Want to get involved?

Tuesday, September 18, 02:28 UTC @ The Apache Software Foundation Blog

FOUNDATION OPERATIONS SUMMARY First Quarter, Fiscal Year 2019 (May - July 2018) "The most popular open source software is Apache..." — DZone “What Open Source Software Do You Use?” [February 2018]

Tuesday, September 18, 00:47 UTC @ Daring Fireball

The Daily Mail: Former White House Photographer Pete Souza has released the first images taken using the new phone, showing off its new camera capabilities. He took these shots exclusively for Dailymail.com around Washington DC, and any editing was done on the phone using Apple’s tools. “Smart phones have turned everyone into a photographer but they haven’t necessarily turned everyone into a ‘good’ photographer,” he told Dailymail.com. “At

Tuesday, September 18, 00:00 UTC @ objc.io

Swift is a hybrid language: it knows all the typical imperative control flow statements and supports mutable variables and properties; at the same time, Swift also supports typical functional programming features, like value types and first class functions. In Swift, we often have the choice: do we want to express a piece of logic in an imperative or in a functional way? As a simple example, we’ll sum up the total width of an array of views: var width: CGFl

Monday, September 17, 23:09 UTC @ Daring Fireball

My favorite new feature today, of course, is the ability to show website favicons in Safari tabs — a feature now available in Safari 12 and iOS 12. They’re off by default, but the way they work on Mac, iPad, and iPhone is just perfect. I heard from a lot of DF readers

Monday, September 17, 22:31 UTC @ Daring Fireball

Ricky Mondello on Twitter: Big day! iOS 12 is out! I hope y’all love it. I’m going to highlight a few iCloud Keychain, Safari, and WebKit features and improvements that mean a lot to me. This thread is a terrific collection of little things here and there. I’ve been running iOS 12 betas full-time since mid-July and I learned a bunch of things just from this thread.

Monday, September 17, 20:46 UTC @ Signal v. Noise - Medium

Monday, September 17, 20:22 UTC @ Daring Fireball

Martin Crutsinger, reporting for the AP: Time Magazine is being sold by Meredith Corp. to Marc Benioff, a co-founder of Salesforce, and his wife, it was announced Sunday. […] The Benioffs are purchasing Time personally, and the transaction is unrelated to Salesforce.com, where Benioff is chairman and co-CEO and co-founder. The announcement by Meredith said that the Benioffs would not be involved in the day-to-day operations or journalistic decisions at Time. Those decisio

Monday, September 17, 19:42 UTC @ Daring Fireball

Absolutely fantastic piece assembled by Steven Levy for Wired: Twenty-five years ago, the computer revolution’s marquee company was in decline. Back then, it was just settling into shiny new headquarters, a campus of six buildings that formed a different kind of ring. Called Infinite Loop, the name is a reference to a well-known programming error — code that gets stuck in an endless repetition — though no one seems to know who applied it. Infinite Loop was the place wher

Monday, September 17, 18:31 UTC @ Daring Fireball

Sonny Dickson: We have managed to obtain several pieces of exclusive information that shed some light on what challenges Apple is currently facing with the project. According to our sources, the broad feeling of many working the project at Apple is that the device may be doomed to failure, and may not be viable at all unless significant advancements can be made. More details than what I’ve heard, but very much along the same lines.

Monday, September 17, 18:03 UTC @ Daring Fireball

Instants is a new iPhone app to help anyone (especially businesses) make social media content with stylish motion graphics. It was just featured in the App Store in “New Apps We Love” and made by a team with some ex-Apple folks and die-hard Mac nerds. You can really feel the care and attention that went into the experience design. Download it, and while you’re there, be sure to check out the

Monday, September 17, 18:02 UTC @ Daring Fireball

Linus Torvalds, announcing that he’s taking a break from Linux kernel development: This is my reality. I am not an emotionally empathetic kind of person and that probably doesn’t come as a big surprise to anybody. Least of all me. The fact that I then misread people and don’t realize (for years) how badly I’ve judged a situation and contributed to an unprofessional environment is not good. This week people in our community confronted me about my lifetime

Monday, September 17, 14:44 UTC @ Quanta Magazine

In math, sometimes the most common things are the hardest to find.

Monday, September 17, 13:51 UTC @ Business of Software USA

Business of Software Conference USA 2018 is under 2 weeks away. As always, the #BoS2018 schedule is designed to help Software Founders, CEOs, and Product Managers lead with confidence and grow a better business. Over 12 years of Conferences we’ve seen over 200 talks given by some brilliant speakers. This year at BoS USA there are 8 returning […] The post Return of the Speakers // #BoS201

Monday, September 17, 11:38 UTC @ La Ciencia de la Mula Francis

Mi charla Naukas Bilbao 2018 ya está disponible en vídeo (EITB). Titulada “El ángulo mágico del grafeno”, con 10 minutos de duración, presenta la gran noticia científica de este año: que el grafeno bicapa rotado con ángulo mágico es […] Leer más

Monday, September 17, 10:00 UTC @ Swift.org

Swift 4.2 is now officially released! Swift 4.2 builds on the strengths of Swift 4, delivering faster compile times, improving the debugging experience, updating the standard library, and converging on binary compatibility. You can watch a quick overview of it by watching the WWDC 2018: What’s New in Swift presentation, and try out some of the new features in this

Monday, September 17, 09:25 UTC @ Use Your Loaf

New iPhones are coming and bringing new device sizes. The good news, if you have been following Apple’s advice, is that you should not have much to do this year. Here is a recap of what you need to know to update your Apps for the new devices. The New Models In A Nutshell There are three new devices all following the iPhone X style of having no home button and a cutout or notch for the camera and sensor housing: iP

Monday, September 17, 09:15 UTC @ Y Combinator

Joan Lasenby is a University Reader in the Signal Processing and Communications Group of the Cambridge University Engineering Department, and is a College Lecturer and Director of Studies in Engineering at Trinity College. In this episode we talk about Joan’s research into 3D reconstruction from multiple cameras and her interest in geometric algebra.

Monday, September 17, 07:00 UTC @ NSHipster

If you tuned in to this year’s WWDC Keynote, you’ll know all about the big features in iOS 12: Siri Shortcuts, ARKit 2, and Core ML 2 — not to mentioned the bombshell pre-announcement of the long-rumored iOS / Mac bridge, codenamed “Marzipan”.

Monday, September 17, 04:23 UTC @ Computational Complexity

Scott Aaronson recently won the Tomassoni-Chisesi Prize in Physics (yeah Scott!). In his post (here) about it he makes a passing comment: I'm of course not a physicist I won't disagree (does that mean I agree? Darn Logic!) but it raises the question of how we identify ourselves. How to answer the question: Is X a Y? (We will also consider why w

Sunday, September 16, 18:21 UTC @ John D. Cook

Sometimes simple notation can make a big difference. One example of this is the Kronecker delta function δij which is defined to be 1 if i = j and zero otherwise. Because branching logic is built into the symbol, it can keep branching logic outside of your calculation. That is, you don’t have to write “if … […]

Sunday, September 16, 04:27 UTC @ Azimuth

This is a well-known, easy group theory result that I just learned. I would like to explain it more slowly and gently, and I hope memorably, than I’ve seen it done. It’s called the 5/8 theorem. Randomly choose two elements of a finite group. What’s the probability that they commute? If it exceeds 62.5%, the […]

Sunday, September 16, 03:58 UTC @ Daring Fireball

Regarding the event itself and the devices announced at it.

Sunday, September 16, 00:23 UTC @ Daring Fireball

NBC News: “The EAS [Emergency Alert System] is a national public warning system that provides the President with the communications capability to address the nation during a national emergency,” FEMA said. The test message will have a header that reads “Presidential Alert,” according to the agency. Users whose phones are on will twice hear a tone and vibration and then see an English-only (for now) message: “THIS IS A TEST of the National Wireless

Saturday, September 15, 23:22 UTC @ Daring Fireball

Not compared to a MacBook Pro. Interesting comparison. ★

Saturday, September 15, 19:11 UTC @ Daring Fireball

Theodore Schleifer, reporting for Recode: Mary Meeker of Kleiner Perkins Caufield & Byers, one of the premier Silicon Valley investors at one of its premier venture capital firms, is leaving her position in an abrupt, high-profile splitting of the firm she helped lead. Meeker is leading an exodus of late-stage investors from Kleiner Perkins in its most dramatic shake-up since legendary investor John Doerr stepped back from his role more than two years ago. Meeker’s exit &

Friday, September 14, 19:58 UTC @ Daring Fireball

Kif Leswing, writing for Business Insider: Over at the headquarters of AliveCor, a startup based in Google’s hometown of Mountain View, they, too, were surprised by the announcement, CEO Vic Gundotra said in a phone interview on Thursday. Gundotra is a former Googler, widely known as the executive behind the Google+ social network. […] The fact that a huge tech giant is entering their corner of health-tech validates AliveCor’s approach, Gundotra said. […

Friday, September 14, 19:21 UTC @ TED Blog

As usual, the TED community is making headlines. Below, some highlights. Does local action make a difference when fighting climate change? Environmental scientist Angel Hsu teamed up with experts at several climate research institutes on a fascinating new report about the potential effects of local action in reducing greenhouse gas emissions globally. Hsu synthesized data

Friday, September 14, 17:30 UTC @ Daring Fireball

Brian Barrett, writing for Wired: On one level, yes, the visualization literally just shows what three, six, and nine feet of water looks like. But it’s showing that in a context most people have never experienced. It fills in the gaps of your imagination, and hopefully underscores for anyone in a flood zone all the reasons they should not be. Perfect example of how showing something can be tremendously more effective than merely saying something. <

Friday, September 14, 17:01 UTC @ Daring Fireball

Mark Bergen and Austin Carr, writing for Businessweek: It’s not just Washington. Even in Silicon Valley, people have started wondering: Where’s Larry? Page has long been reclusive, a computer scientist who pondered technical problems away from the public eye, preferring to chase moonshots over magazine covers. Unlike founder-CEO peers (Mark Zuckerberg comes to mind), he hasn’t presented at product launches or on earnings calls since 2013, and he hasn’t done press since 2015. H

Friday, September 14, 16:26 UTC @ Y Combinator

YC Partner Geoff Ralston talks to CoinList cofounder and President Andy Bromberg.

Friday, September 14, 16:07 UTC @ Gödel’s Lost Letter and P=NP

Simple probabilistic arguments that apply to monoids too Famous Mathematicians source Niels Abel is of course a famous mathematician from the 19th century. Many mathematical objects have been named after him, including a type of group. My favorites, besides groups, are: Abel’s binomial theorem, Abel’s functions, and Abel’s summation formula. Not to mention the prize […]

Friday, September 14, 16:06 UTC @ The Apache Software Foundation Blog

And a happy Friday to you all. Let's review what's up in Apache Land from the last week: ASF Board –management and oversight of the business affairs of the corporation in accordance with the Foundation's bylaws. - Next Board Meeting: 19 September. Board calendar and minutes http://... ApacheCon™ –the ASF's official global conference series, now in

Thursday, September 13, 21:30 UTC @ News - Apple Developer

Get all the design and development details you need to optmize your apps for iPhone Xs, iPhone Xs Max, iPhone Xr, and Apple Watch Series 4.Watch the videos

Thursday, September 13, 20:57 UTC @ Y Combinator

We're now publishing the Startup School lectures as a podcast. Here's where to find them.

Thursday, September 13, 16:25 UTC @ gilded : rust

Here's a version that compiles: https://... The first thing I did was change *tmp_ptr = n; to *tmp_ptr = *n;. This is because for n in x.iter() iterates over references to the values in the ar

Thursday, September 13, 15:54 UTC @ John D. Cook

Let u be a real-valued function of n variables, and let v be a vector-valued function of n variables, a function from n variables to a vector of size n. Then we have the following product rule: D(uv) = v Du + u Dv. It looks strange that the first term on the right isn’t Du v. The function uv is a function […]

Thursday, September 13, 13:49 UTC @ Hacker Noon - Medium

Thursday, September 13, 12:08 UTC @ Computational Complexity

Often when the question comes to what happens if P = NP, one typically hears the response that it kills public-key cryptography. And it does. But that gives the impression that given the choice we would rather not have P = NP. Quite the opposite, P = NP would greatly benefit humanity from solving AI (by finding the smallest circuit consistent with the data) and curing cancer. I've said this before but never explained why. Of course I don't have a mathematical proof that P = NP cures cancer. Nor

Wednesday, September 12, 22:00 UTC @ News - Apple Developer

You can now submit apps that take advantage of the powerful new capabilities in the next release of iOS, watchOS, and tvOS. Build your apps using Xcode 10 GM seed, test with the latest releases of iOS 12, watchOS 5, and tvOS 12, and submit them for review.Starting March 2019, all new apps and app updates for iPhone, including universal apps, will need to be built with the iOS 12 SDK and support iPhone XS Max. All new apps and app updates for Apple Watch will need to be built with the watchOS 5 SDK and suppo

Wednesday, September 12, 22:00 UTC @ News - Apple Developer

The reimagined Mac App Store will soon be arriving with macOS Mojave. Organized around the specific things customers love to do on Mac, along with insightful stories, curated collections, and videos, the Mac App Store on macOS Mojave beautifully showcases your apps and makes them even easier to find. You also have more opportunities to display your content with subtitles, up to 10 screenshots, and up to three app previews per localization. Download Xcode 10 GM seed, build your apps for macOS Mojave, test, a

Wednesday, September 12, 21:34 UTC @ Daring Fireball

Peter Cao, 9to5Mac: While Apple made no mention of AirPower during today’s event, it looks like Apple may be launching AirPower later in 2018 than originally anticipated. Apple has seemingly updated its website today, removing all mentions of AirPower except in one place. Looking at the AirPods product page, Apple mentions the optional wireless charging case, noting that it is currently unavailable. The charging case is placed on what appears to be the AirPower mat, along wit

Wednesday, September 12, 20:07 UTC @ Daring Fireball

Apple did something like this last year — it’s a lot of fun if you weren’t following along live and just want the highlights. ★

Wednesday, September 12, 19:00 UTC @ News - Apple Developer

iPhone XS, iPhone XS Max, and iPhone XR feature a trio of all-screen displays paired with A12 Bionic and the next-generation Neural Engine. A12 Bionic is the smartest and most powerful chip ever in a smartphone, and is designed for performance in mind with Core ML, ARKit, Metal, and more. And now Face ID works even faster than before to securely and privately unlock, authenticate, and pay.Learn more

Wednesday, September 12, 19:00 UTC @ News - Apple Developer

Bring incredible experiences to the wrist with the expanded display and performance enhancements of Apple Watch Series 4. Show more content at a glance, and display more information in full color with vivid detail using new complication types on the Infograph and Infograph Modular face. And with watchOS 5, you can take advantage of interactive notifications, access to the Siri watch face, audio controls, and more.Learn more

Wednesday, September 12, 18:08 UTC @ Signal v. Noise - Medium

Wednesday, September 12, 16:18 UTC @ Y Combinator

For every successful freemium business, there are hundreds of companies that have tried freemium but failed. Here we’ll be sharing a step-by-step guide for monetizing your freemium business - covering user segmentation and targeting, monetization campaign set-up and best practices, and model optimization.

Wednesday, September 12, 15:02 UTC @ Y Combinator

Suhail Doshi, founder of YC alumnus Mixpanel and a world-class expert on measurement, details how startups should think about discovering the important facts about how their product is used.

Wednesday, September 12, 15:00 UTC @ Y Combinator

YC Partner Gustaf Alströmer, who was most recently a growth expert at Airbnb describes strategies for scaling your user base.

Wednesday, September 12, 14:04 UTC @ Daring Fireball

Who even cares about a sitemap anymore (search engines maybe?) — and why in the world would Apple’s process for publishing this file include even a chance that it would go live before the event? ATH only notes the iPhone names, but The Verge noticed that updated Apple Watch bands are in new sizes, 40 and 44 mm, which suggests they’re not compatible with existing Apple Watches.

Wednesday, September 12, 10:49 UTC @ Backreaction

Making Sense of Science: Separating Substance from Spin By Cornelia Dean Belknap Press (March 13, 2017) It’s not easy, being a science journalist. On one hand, science journalists rely on good relations with scientists. On the other hand, their next article may be critical of those scientists’ work. On the one hand they want to get the details right. On the other hand they have tight deadlines

Wednesday, September 12, 10:49 UTC @ Backreaction

Making Sense of Science: Separating Substance from Spin By Cornelia Dean Belknap Press (March 13, 2017) It’s not easy, being a science journalist. On one hand, science journalists rely on good relations with scientists. On the other hand, their next article may be critical of those scientists’ work. On the one hand they want to get the details right. On the other hand they have tight deadlines

Wednesday, September 12, 09:52 UTC @ Hacker Noon - Medium

Wednesday, September 12, 08:49 UTC @ Azimuth

  I’ve been spending the last month at the Centre of Quantum Technologies, getting lots of work done. This Friday I’m giving a talk, and you can see the slides now: • John Baez, Getting to the bottom of Noether’s theorem. Abstract. In her paper of 1918, Noether’s theorem relating symmetries and conserved quantities was […]

Wednesday, September 12, 08:00 UTC @ FreeBSD Security Advisories

Wednesday, September 12, 00:24 UTC @ Daring Fireball

Brilliant shows you how to think critically and become a creative problem solver by guiding you through problems. They take concepts like conditional probability and machine learning, break them up into bite sized concepts, present clear thinking in each part, and then build back up to an interesting conclusion. Develop your joy of learning by cultivating your curiosity, applying what you learn, and allowing for failure. To help you build up your problem-solving and critical thinking abilities,

Tuesday, September 11, 23:34 UTC @ Hacker Noon - Medium

Tuesday, September 11, 22:15 UTC @ Daring Fireball

Hayley Peterson, reporting for Business Insider: Zachariah Vargas was six hours into his shift delivering packages for Amazon. He was about to drop off a package when he accidentally slammed the door of his truck on his hand. The door clicked shut, trapping his middle and ring fingers. Once he freed his fingers, the blood began to pour. Both of Vargas’ arms started to shake involuntarily. The lacerations were deep. Vargas thought he glimpsed bone when he wiped away the bl

Tuesday, September 11, 18:12 UTC @ Daring Fireball

Rani Molla, writing for Recode: If it feels as though Amazon’s site is increasingly stuffed with ads, that’s because it is. And it looks like that’s working — at least for brands that are willing to fork over ad dollars as part of their strategy to sell on Amazon. Amazon-sponsored product ads have been around since 2012. But lately, as the company has invested in growing its advertising business, they’ve become more aggressive. Paid placement

Tuesday, September 11, 16:11 UTC @ Computational Complexity

This is an ANON guest post. Even I don't know who it is! They emailed me asking if they could post on this topic, I said I would need to see the post. I did and it was fine. ----------------------------------------------------------------------------------------------------------------- I have written many tenure/promotion letters before. But this summer, I was especially inundated with requests. Thinking about my past experiences with such letters, I started to question thei

Tuesday, September 11, 14:44 UTC @ joe cieplinski

When I came up with the original concept of RECaf, shortcuts hadn’t been announced yet. I knew the key to any data-logging app is making the act of adding new entries as simple as possible, so I focused all my efforts on reducing log friction. If it takes too

Tuesday, September 11, 14:39 UTC @ John D. Cook

The p-norm of a vector is defined to be the pth root of the sum of its pth powers. Such norms occur frequently in application [1]. Yoshio Koide discovered in 1981 that if you take the masses of the electron, muon, and tau particles, the ratio of the 1 norm to the 1/2 norm is very nearly 2/3. […]

Tuesday, September 11, 11:08 UTC @ ACM Queue - All Queue Content

Dependency cycles will be familiar to you if you have ever locked your keys inside your house or car. You can't open the lock without the key, but you can't get the key without opening the lock. Some cycles are obvious, but more complex dependency cycles can be challenging to find before they lead to outages. Strategies for tracking and controlling dependencies are necessary for maintaining reliable systems.

Tuesday, September 11, 10:56 UTC @ La Ciencia de la Mula Francis

La luminosidad integrada (número total de colisiones protón-protón) del LHC en 2018 ya ha superado la alcanzada en 2017, y sigue subiendo. A fecha de hoy, ATLAS ha almacenado en disco 50 /fb (inversos de femtobarn) y CMS casi […] Leer más

Tuesday, September 11, 09:48 UTC @ Business of Software USA

Supporter Profile: Software Secured We’re profiling the companies that are supporting BoS USA. Today, meet Software Secured – experts at Continuous and Traditional Application Security testing, who help your applications launch securely with unparalleled accuracy. Meet the team who will be in Boston… “We are excited to attend the Business of Software conference as it is […] The post

Tuesday, September 11, 04:00 UTC @ This Week in Rust

Hello and welcome to another issue of This Week in Rust! Rust is a systems language pursuing the trifecta: safety, concurrency, and speed. This is a weekly summary of its progress and community. Want something mentioned? Tweet us at @ThisWeekInRust or send us a pull request. Want to get involved?

Tuesday, September 11, 03:07 UTC @ Not Even Wrong

The Stanford string theory group is not taking the attack by Harvard’s Cumrun Vafa lying down. After an arXiv barrage of papers defending KKLT (see here), they’ve now enlisted the Stanford press office, which has produced a five part promotional … Continue reading →

Tuesday, September 11, 00:00 UTC @ objc.io

Over the last few weeks we have completed a series of ten Swift Talk episodes following the process of building a declarative form library. For those who haven’t been following along, we’d like to take this opportunity to revisit our original design goals and give you an idea of what this library is already capable of. When we started to build the library, we had two major design goals in mind: Forms

Monday, September 10, 22:00 UTC @ News - Apple Developer

Auto-renewable subscriptions give users access to content or services within an app on an ongoing basis. The developers behind Elevate, Dropbox, Calm, and Bumble share how they create great customer experiences by continuing to provide value throughout the entire subscription lifecycle.Watch the film

Monday, September 10, 20:36 UTC @ Daring Fireball

My thanks to Ken Kocienda for sponsoring this week at DF for his new book Creative Selection. How does Apple’s creative process work? This is your look inside. It’s truly an amazing and unprecedented book. If you haven’t already, just buy it. ★

Monday, September 10, 20:06 UTC @ Daring Fireball

Ming-Chi Kuo: In addition to Face ID support, we expect the new iPad Pro models’ main upgrade to include replacing Lightning with a USB-C interface and bundling with a new unibody design 18W power adapter, which cancels the removable plug design. I would find this a bit surprising, but nowhere near as shocking as if they moved iPhones to USB-C. On the one hand, Apple is positioning iPad Pros as alternatives to laptops, so a USB-C port makes sense for connect

Monday, September 10, 19:21 UTC @ John D. Cook

The Great Pacific Garbage Patch (GPGP) is a huge region of ocean trash twice the area of Texas. I’m trying to understand how dense it is, and running into contradictory information. This article describes a project, Ocean Cleanup, that aims to clean up half the GPGP in five years. How could you possibly clean up […]

Monday, September 10, 18:42 UTC @ Use Your Loaf

How do you add padding internal to a stack view? How about when the stack view has readable content and you want to limit the line length? You can do it in Interface Builder or in code but both have oddities. Stack view readable content guides certainly don’t work the way I would expect or hope. (Also read to the end for a special announcement…) Stack View Margins The whole point of a stack view is that it creates the constraints for its arr

Monday, September 10, 17:56 UTC @ Gorilla Logic

In this developer tutorial, we are going to learn how to make an integration with Amazon Cognito using the Amazon Web Services software development kit (AWS SDK) for Java by providing some code samples and documentation. We are going to leverage AWS to integrate authentication and authorization into a Java web application, in addition to […] The post Java Integration with Amazon Cognito Developer Tut

Monday, September 10, 17:46 UTC @ tecosystems

For those who would develop software and sell it, open source is something of a conundrum. On the one hand, as Mike Olson has noted, you can’t win with a closed platform. On the other, it substantially complicates the sales process. Before open source software entered the mainstream for enterprise technology usage, the commercialization of

Monday, September 10, 17:46 UTC @ tecosystems

For those who would develop software and sell it, open source is something of a conundrum. On the one hand, as Mike Olson has noted, you can’t win with a closed platform. On the other, it substantially complicates the sales process. Before open source software entered the mainstream for enterprise technology usage, the commercialization of

Monday, September 10, 14:07 UTC @ Signal v. Noise - Medium

Monday, September 10, 12:25 UTC @ Hacker Noon - Medium

Monday, September 10, 11:40 UTC @ Business of Software USA

What makes Business of Software Conference speakers so smart? Like most smart people, they read a lot. We always ask which books have had the biggest influence on their business lives and what they are reading now. It’s fascinating to hear what books other people read and great to see so many BoS speakers appearing […] The post Here’s what

Monday, September 10, 07:00 UTC @ NSHipster

Humans perceive self-motion using a combination of sensory information from their visual, proprioceptive, and vestibular systems. Of these, the primary determination is made by the vestibular system, comprising the semicircular canals, which sense changes in rotation, and the otoliths, which are sensitive to horizontal and vertical forces. Today’s iPhones are packed with a full complement of sensors tha

Monday, September 10, 06:19 UTC @ The Geomblog

A short review of Hannah Fry's new book 'Hello World' Starting wth Cathy O'Neill's Weapons of Math Destruction, there's been an onslaught of books sounding the alarm about the use of algorithms in daily life. My Amazon list that collects these together is even called 'Woke CS'. These are all excellent books, calling out the racial, gender, and class inequalities that algorithmic decision-making can and does exacerbate and the role of Silicon Valley in perpetuating these biases.

Monday, September 10, 00:00 UTC @ Pedro Piñera

What: Oberbaumbrücke Surface: Water color A4 paper. Drawing - Oberbaumbrücke was originally published by Pedro Piñera at Pedro Piñera on September 10, 2018.

Sunday, September 09, 23:11 UTC @ John D. Cook

I’ve written three blog posts lately about the classification of finite simple groups. I’m done with that topic for now. I may come back and revisit it in the future. So if group theory isn’t your favorite topic, don’t worry. I don’t know what I’ll blog about next, but it’ll probably be one of the […]

Sunday, September 09, 19:14 UTC @ John D. Cook

The previous post defined the groups PSL(n, q) where n is a positive integer and q is a prime power. These are finite simple groups for n ≥ 2 except for PSL(2, 2) and PSL(2, 3). Overlap among PSL(n, q) There are a couple instances where different values of n and q lead to isomorphic groups: PSL(2, 4) and PSL(2, 5) are […]

Sunday, September 09, 17:12 UTC @ Backreaction

Old photo. My father died a few weeks shy of his 42nd birthday. Went to bed one night, didn’t wake up the next morning. The death certificate says heart failure. Family gossip says it was a history of clinical depression that led to obesity and heavy drinking. They tell me I take after him. They may not be entirely wrong. I’ve had troubles with my blood pressure ever since I was a teenager. I

Sunday, September 09, 17:12 UTC @ Backreaction

Old photo. My father died a few weeks shy of his 42nd birthday. Went to bed one night, didn’t wake up the next morning. The death certificate says heart failure. Family gossip says it was a history of clinical depression that led to obesity and heavy drinking. They tell me I take after him. They may not be entirely wrong. I’ve had troubles with my blood pressure ever since I was a teenager. I

Saturday, September 08, 22:30 UTC @ John D. Cook

A few days ago I wrote about finite simple groups and said that I might write more about them. This post is a follow-on to that one. In my earlier post I said that finite simple groups fell into five broad categories, and that three of these were easy to describe. This post will chip […]

Saturday, September 08, 21:11 UTC @ Daring Fireball

John Paczkowski and Charlie Warzel, reporting for BuzzFeed: A day after being banned from Twitter, Alex Jones and Infowars have been booted from yet another platform: Apple’s popular App Store. As of Friday evening, searches on the App Store for Infowars return no results. Apple confirmed the app’s removal to BuzzFeed News, but declined to comment, pointing to its App Store Revi

Saturday, September 08, 19:32 UTC @ La Ciencia de la Mula Francis

Naukas Bilbao es el mayor evento de divulgación científica del mundo. Se celebra en el Palacio Euskalduna y es gratis, hasta completar aforo; con más de 2000 plazas, tu sitio está esperando que lo ocupes (el año pasado se […] Leer más

Saturday, September 08, 04:43 UTC @ Gödel’s Lost Letter and P=NP

Issues AlphaZero doesn’t need to deal with ETS source Frederic Lord wrote a consequential doctoral dissertation at Princeton in 1951. He was already the director of statistical analysis for the Educational Testing Service, which was formed in Princeton in 1947. All the scoring of our SATs, GREs, and numerous other standardized tests have been influenced […]

Saturday, September 08, 00:25 UTC @ Daring Fireball

Aaron Tilley, writing for The Information (paywalled, alas; here’s MacRumors’s summary) During meetings, Mr. Cue is sometimes known to fall silent, shut his eyes and tilt his head back, leaving other participants to wonder whether he is staring at the ceiling or sleeping, said several former Apple employees and one outside partner present on multiple occasions when it happened over the past

Saturday, September 08, 00:05 UTC @ Daring Fireball

Ian Cutress and Andrei Frumusanu, writing for AnandTech: We did approach Huawei about this during the IFA show last week, and obtained a few comments worth putting here. Another element to the story is that Huawei’s new benchmark behavior very much exceeds anything we’ve seen in the past. We use custom editions of our benchmarks (from their respective developers) so we can test with this “detection” on and off, and the massive differences in performance between the pub

Friday, September 07, 23:46 UTC @ Daring Fireball

A popular utility in the Mac App Store was collecting users’ browser history and sending it to a server in China.

Friday, September 07, 21:09 UTC @ Signal v. Noise - Medium

Friday, September 07, 18:13 UTC @ The Apache Software Foundation Blog

Welcome, September. Here's what the Apache community has been working on over the past week: Success at Apache –a monthly blog series that focuses on the processes behind why the ASF "just works". - 赢在 Apache: If it helps others, all the better. by Sally Khudairi https://... ASF Board –management and oversight of the business affairs of the corporation in accordance with the Foundation's b

Friday, September 07, 17:39 UTC @ Not Even Wrong

There is a simple question about quantum theory that has been increasingly bothering me. I keep hoping that my reading about interpretational issues will turn up a discussion of this point, but that hasn’t happened. I’m hoping someone expert in … Continue reading →

Friday, September 07, 15:15 UTC @ Business of Software USA

Seth Godin on Making Software Seth Godin spoke at Business of Software Conference USA last year to share some of the many lessons that he has learned in his 33 years in the software industry. You can watch the talk here. Or read a transcript if you prefer. This year, Business of Software Conference USA […] The post Seth Godin Quotes From Lessons Learned

Friday, September 07, 14:59 UTC @ Ole Begemann

I’ve been using a new 2018 MacBook Pro as my primary work machine for a few weeks now. I bought the top configration: 2.9 GHz six-core i9 CPU, 32 GB RAM, Radeon Pro 560X GPU. My previous computer was a Late 2013 MacBook

Friday, September 07, 14:01 UTC @ Journal of Computational Geometry

In Lombardi drawings of graphs, edges are represented as circular arcs and the edges incident on vertices have perfect angular resolution. It is known that not every planar graph has a planar Lombardi drawing. We give an example of a planar 3-tree that has no planar Lombardi drawing and we show that all outerpaths do have a planar Lombardi drawing. Further, we show that there are graphs that do not even have any Lombardi drawing at all. With this in mind, we generalize the notion of Lombardi drawings to

Friday, September 07, 12:48 UTC @ Signal v. Noise - Medium

Friday, September 07, 09:53 UTC @ Lambda the Ultimate - Programming Languages Weblog

Jules Hedges has written a thought-provoking blog post, On compositionality where he connects the familiar idea of compositionality to the idea of emergent effects in nature, where systems can be understood as either having compositional properties or emergent properties. The key point about emergent systems is that they are hard to understand, and this is as true for engineering as it is for science. He goes on to say "As a final

Thursday, September 06, 19:29 UTC @ Daring Fireball

Vastly underrated as an actor. You just can’t have this many hits without being great. My favorite of his films, of course, was Boogie Nights, in which he was brilliant. ★

Thursday, September 06, 19:05 UTC @ John D. Cook

I posted the definitions of accuracy, precision, and recall on @BasicStatistics this afternoon. I think the tweet was popular because people find these terms hard to remember and they liked a succinct cheat sheet. Accuracy = (TP+TN)/(TP+FP+FN+TN) Precision = TP/(TP+FP) Recall = TP/(TP+FN) where T = true F = false P = positive N = […]

Thursday, September 06, 13:51 UTC @ John D. Cook

Today‘s exponential sum curve is simply a triangle. But yesterday‘s curve was more complex and tomorrow‘s curve will be more complex as well. Why is today’s curve so simple? The vertices of the curves are the partial sums of the series where m is the month, d is the day, and y is the last two digits of […]

Thursday, September 06, 13:01 UTC @ Computational Complexity

Glencora Borradaile wrote a blog post in June about how conferences discriminate. Let me spell it out. In order to really succeed in most areas of computer science, you need to publish conference papers and this, for the most part, means attendance at those conferences. But because of the institutional discrimination of border control laws and the individual d

Thursday, September 06, 11:58 UTC @ John D. Cook

There’s no direct way to define the sum of an infinite number of terms. Addition takes two arguments, and you can apply the definition repeatedly to define the sum of any finite number of terms. But an infinite sum depends on a theory of convergence. Without a definition of convergence, you have no way to […]

Thursday, September 06, 08:00 UTC @ FreeBSD News Flash

Thursday, September 06, 01:22 UTC @ Not Even Wrong

Philip Ball’s Beyond Weird is the best popular survey I’ve seen of the contemporary state of discussions about the “interpretation” of quantum mechanics. It appeared earlier this year in a British edition (which I just read a copy of), with … Continue reading →

Thursday, September 06, 00:00 UTC @ Pedro Piñera

In my effort of moving away form Gmail, I took the opportunity to set up my new email account in such a way that I could better organize my work on GitHub. There’s a feature that GitHub has never had and that I’d find very useful, workspaces. I used to look at the notifications to know the things I should focus on. If you are part of multiple organizations, all those notifications show up in the same place. As a result, when I open the notifications page to plan the open source work, I end up

Wednesday, September 05, 23:59 UTC @ Daring Fireball

I wrote the previous two items before reading this David Frum piece for The Atlantic: Impeachment is a constitutional mechanism. The Twenty-Fifth Amendment is a constitutional mechanism. Mass resignations followed by voluntary testimony to congressional committees are a constitutional mechanism. Overt defiance of presidential autho

Wednesday, September 05, 23:14 UTC @ Daring Fireball

The Washington Post, with highlights from Bob Woodward’s Fear, which comes out next week: Cohn, a Wall Street veteran, tried to tamp down Trump’s strident nationalism regarding trade. According to Woodward, Cohn “stole a letter off Trump’s desk” that the president was intending to sign to formally withdraw the United States from a trade agreement with South Korea. Cohn later told an associate that he removed the letter to protect national security and that Trump

Wednesday, September 05, 22:56 UTC @ Daring Fireball

The New York Times: The Times today is taking the rare step of publishing an anonymous Op-Ed essay. We have done so at the request of the author, a senior official in the Trump administration whose identity is known to us and whose job would be jeopardized by its disclosure. We believe publishing this essay anonymously is the only way to deliver an important perspective to our readers. The senior administration official: Given the inst

Wednesday, September 05, 19:55 UTC @ Daring Fireball

iPhone Naming Rumors: ‘iPhone XS Max’ and ‘iPhone XR’

Wednesday, September 05, 19:18 UTC @ TED Blog

The TED community is busy with new projects and ideas: below, some highlights. A new galaxy cluster hidden in plain sight. Researchers at MIT, including TED speaker Henry Lin, have recently discovered a cluster of hundreds of galaxies obscured by an intensely active supermassive black hole at its center. That extra-bright black hole, named PKS1353-341, […

Wednesday, September 05, 19:02 UTC @ La Ciencia de la Mula Francis

La fusión de dos estrellas de neutrones (kilonova AT 2017gfo ) en la galaxia NGC 4993 observada con la onda gravitacional GW1708171 y el brote corto de rayos gamma sGRB170817 produjo dos chorros relativistas. El que hemos podido observar […] Le

Wednesday, September 05, 18:56 UTC @ Daring Fireball

I missed this back in June: Apple’s 29-watt USB-C charger is now a 30-watt charger. Not a big deal, but for some reason I found it confusing when I tried to buy a 29-watt charger the other day and couldn’t find it. The reason to care: this is the only Apple-branded charger that can charge a recent iPad or iPhone at top speed (other than the even more expensive USB-C MacBook chargers).

Wednesday, September 05, 17:00 UTC @ News - Apple Developer

Starting today, the pricing for apps and in-app purchases in the Republic of Korea will change from U.S. Dollars to Korean Republic Won (KRW). While your proceeds from sales in the Republic of Korea will also change to KRW, you will continue to be paid in the currency you selected for your bank in App Store Connect.

Wednesday, September 05, 16:49 UTC @ Backreaction

[image: kamere.com] Physicists still haven’t figured out what dark matter is made of, if anything. The idea that it’s made of particles that interact so weakly we haven’t yet measured them works well to explain some of the observational evidence. Notably the motions of galaxies bound to clusters and the features of the cosmic microwave background fit with theories of particle dark matter

Wednesday, September 05, 16:49 UTC @ Backreaction

[image: kamere.com] Physicists still haven’t figured out what dark matter is made of, if anything. The idea that it’s made of particles that interact so weakly we haven’t yet measured them works well to explain some of the observational evidence. Notably the motions of galaxies bound to clusters and the features of the cosmic microwave background fit with theories of particle dark matter

Wednesday, September 05, 15:00 UTC @ Martin Fowler

Over the last couple of weeks, I've updated my list of Eurogames to include short reviews for four games I acquired earlier this year: Concordia, Kingdom Builder, Azul, and

Wednesday, September 05, 14:25 UTC @ John D. Cook

Once in a while you’ll hear of someone doing a digital detox, which implies there’s something toxic about being digital. And there can be, but “digital” misdiagnoses the problem. The problem mostly isn’t digital technology per se but how we use it. I think the important distinction isn’t digital vs. analog, but rather push vs. […]

Wednesday, September 05, 14:13 UTC @ Journal of Computational Geometry

We consider the problem of packing a family of disks ``on a shelf,'' that is, such that each disk touches the x-axis from above and such that no two disks overlap. We study the problem of minimizing the distance between the leftmost point and the rightmost point of any disk in such a packing.  We show how to approximate this problem within a factor of 4/3 in O(n log n) time. We further provide an O(n log n)-time exact algorithm for a special case which includes inputs wh

Wednesday, September 05, 11:51 UTC @ Martin Fowler

Here's summary of the changes in the second edition, including a table showing the fate of the original 68 refactorings and a list of the new ones. more…

Wednesday, September 05, 10:24 UTC @ Business of Software USA

Bruce McCarthy, President, Boston Product Management Association Bruce McCarthy has sensed a movement in Product Companies – a movement away from ‘how do we sell more of what we’ve already built?’ and towards ‘what new value can we provide?’. He calls this movement ‘Product Culture’. In this talk, Bruce argues that this more entrepreneurial approach walks all […] The post

Wednesday, September 05, 08:47 UTC @ Business of Software USA

Supporter Profile: Shield GEO We’re profiling the companies that are supporting BoS USA. Today, meet Shield GEO – your new best friend if you’re a remote working company. Meet the team who will be in Boston… Shield GEO acts as an ‘employer of record’ to help you hire people in countries without having to set up your […] The post Supporter Profile: Shield GEO appeare

Wednesday, September 05, 08:18 UTC @ La Ciencia de la Mula Francis

Los mosquitos son una de las molestias más típicas del verano. ¿Por qué pican los mosquitos? ¿Por qué pican más a unas personas que a otras? ¿Funcionan los repelentes de ultrasonidos? ¿Cómo podemos fabricar una trampa casera para mosquitos? […]

Wednesday, September 05, 07:31 UTC @ La Ciencia de la Mula Francis

Muchos mamíferos marinos han perdido la función de ciertos genes asociados al gusto y al olfato. Los delfines, las orcas, las focas de Weddell y los manatíes carecen del gen PON1, que codifica la enzima paraoxonasa 1, una enzima […] Leer más

Wednesday, September 05, 02:03 UTC @ The Apache Software Foundation Blog

by Sally Khudairi, with contributions by Ignasi Barrera, Von Gosling, Luke Han, Kevin A. McGrail, and Anthony Shaw. Translations by Ted Liu and David Zhenwei Dong. I became active in The Apache Software Foundation at its inception in 1999. I am responsible for elevating the ASF's visibility, and supporting the Foundation by counseling 350+ Apache projects and their communities in the areas of messaging, outreach, and engagement. As a g

Wednesday, September 05, 01:34 UTC @ Daring Fireball

Rene Ritchie returns to the show for a deep dive into what was revealed (and what wasn’t) by Guilherme Rambo’s release last week of product marketing images of the apparently-named iPhone XS and Series 4 Apple Watch. Brought to you by: Squarespace: Make your next move. Visit squarespace.com/talkshow and enter code talkshow for 10% off your first order. Casper: You can

Tuesday, September 04, 23:10 UTC @ Daring Fireball

[Whoops: Fixed the missing main URL link. Sorry about that.] Speaking of Josh Topolsky-helmed publications and controversial designs, it hasn’t taken long for this 2015 piece at Wired to age poorly (headline: “Haters to the Side: Bloomberg’s Loud Redesign Heralds the Future of Web News”): Not everyone loves the new Bloomberg Business site. On Twitter, pundits have pill

Tuesday, September 04, 22:17 UTC @ Daring Fireball

John Bonazzo, reporting for The Observer: A source told Observer that the cuts included two staff writers, two front-end developers, an executive assistant and a revenue associate. The laid-off staffers were notified in a series of early morning meetings that were scheduled last night. The remaining revenue staff is also taking pay cuts. The source also noted that The Outline plans to slash its freelance budget despite the dearth of staff writers. The site will likely mo

Tuesday, September 04, 16:29 UTC @ John D. Cook

Mark Dominus wrote a blog post yesterday entitled Why I never finish my Haskell programs (part 1 of ∞). In a nutshell, there’s always another layer of abstraction. “Instead of just adding lists of numbers, I can do addition-like operations on list-like containers of number-like things!” Is this a waste of time? It depends entirely […]

Tuesday, September 04, 11:43 UTC @ John D. Cook

I was reading a recent blog post by Evelyn Lamb where she mentioned in passing that 314159 is a prime number and that made me curious how many such primes there are. Let’s look at numbers formed from the digits of π to see which ones are prime. Obviously 3 and 31 are prime. 314 […]

Tuesday, September 04, 09:34 UTC @ Cocoa with Love on Cocoa with Love

Last night, I removed my app StreamToMe from the iOS and Mac App Stores, after 9 years on sale. It’s a deeply sad experience for me – like I’ve lost a faithful pet – so I wanted to write a quick retrospective. This will be a discussion about what it’s like to have an app on the App Store that is financially successful but eternally problematic from a support and maintenance perspective. I’ll talk about why I lost interest in StreamToMe and, at times, deliberately negl

Tuesday, September 04, 06:59 UTC @ La Ciencia de la Mula Francis

Como un surfista que acelera montado en una ola, se pueden acelerar electrones usando la estela de la onda producida en un plasma por el paso de un haz de paquetes de protones de alta energía. En el CERN […] Leer más

Tuesday, September 04, 04:00 UTC @ This Week in Rust

Hello and welcome to another issue of This Week in Rust! Rust is a systems language pursuing the trifecta: safety, concurrency, and speed. This is a weekly summary of its progress and community. Want something mentioned? Tweet us at @ThisWeekInRust or send us a pull request. Want to get involved?

Tuesday, September 04, 02:46 UTC @ Computational Complexity

On Aug 16, 2018 Aretha Franklin died. A famous singer. On Aug 18 2018 Kofi Anan died. A famous politician. On Aug 25, 2018 John McCain died. A famous politician. On Aug 26, 2018 Neil Simon died, a famous playwright. For 12 famous people who died between Aug 5 and Aug 26 see here (be careful- there are a few more on the list who died in August but a different year). One could group th

Tuesday, September 04, 00:00 UTC @ objc.io

Enums are a powerful tool, allowing you to create expressive and precise APIs. However, extracting associated values with a switch statement sometimes feels a little clunky. Consider the following example: enum Layout { case view(width: CGFloat) case space(width: CGFloat) case newline } Here, we’re modelling a UI layout: we can place either a view or a space on a line, both of which have an associated value for their width

Monday, September 03, 20:58 UTC @ Indie Stack

In the What’s New in Cocoa for macOS session at WWDC 2018, Apple announced Quick Actions, which are handy little contextual tasks you can invoke on selected items in the Finder, either from a contextual menu or from the Preview side panel. The emphasis in the session was on creating Quick Actions via Automator. There, … Continue reading Finder Quick Actions

Monday, September 03, 15:00 UTC @ John D. Cook

The prime number theorem says that π(x), the number of primes less than or equal to x, is asymptotically x / log x. So it’s easy to estimate the number of primes below some number N. But what if we want to estimate the number of prime powers less than N? This is a question […]

Monday, September 03, 13:06 UTC @ Backreaction

Bad stock photos of my job.A physicist is excited tohave found a complicated wayof writing the number 2. When Senator Rand Paul last year proposed that non-experts participate in review panels which award competitive research grants, my first reaction was to laugh. I have reviewed my share of research proposals, and I can tell you that without experience in the respective discipline you can’t

Monday, September 03, 13:06 UTC @ Backreaction

Bad stock photos of my job.A physicist is excited tohave found a complicated wayof writing the number 2. When Senator Rand Paul last year proposed that non-experts participate in review panels which award competitive research grants, my first reaction was to laugh. I have reviewed my share of research proposals, and I can tell you that without experience in the respective discipline you can’t

Monday, September 03, 11:28 UTC @ Business of Software USA

Supporter Profile: Bambora We’re profiling the companies that are supporting BoS USA. Today, meet Bambora – the customer-focused payment experience company (with a purple giraffe mascot). Meet the team who will be in Boston… Since the dawn of e-commerce, Bambora has been on a mission to shape the most customer-focused payment experience. With so many diverse […] The post Supporter Pr

Monday, September 03, 08:45 UTC @ Use Your Loaf

Want to be sure you don’t ship code without doing your TODO’s or fixing your FIXME’s? Take a look at the new compiler directives added in Swift 4.2. Xcode Annotations Xcode supports a number of annotations to source code that will show up in the navigation jump bar. Here is an example of an annotated view controller: import UIKit // FIXME: Leaking memory // TODO: - // TODO: Refactor data source and navigation // TODO: N

Sunday, September 02, 20:58 UTC @ John D. Cook

Simple groups are to groups as prime numbers are to numbers.A simple group has no non-trivial normal subgroups, just as a prime number has no non-trivial factors. Classification Finite simple groups have been classified into five broad categories: Cyclic groups of prime order Alternating groups Classical groups Exceptional groups of Lie type Sporadic groups. Three […]

Sunday, September 02, 11:23 UTC @ La Ciencia de la Mula Francis

El pasado martes 28 de agosto se realizó en el CERN el anuncio oficial del redescubrimiento del bosón de Higgs en el canal de desintegración en una pareja quark-antiquark de tipo bottom (H → bb). Combinando datos del LHC […] Leer más

Sunday, September 02, 08:00 UTC @ FreeBSD News Flash

Saturday, September 01, 16:42 UTC @ Martin Fowler

Zinal, Switzerland (2014)

Saturday, September 01, 00:29 UTC @ Not Even Wrong

A collection of links that may be of interest: Talks from the SM at 50 conference held earlier this summer are available here. A detailed expose of the “Fake Science Factory” is here, a related Nature story is here. For … Continue reading →

Friday, August 31, 23:29 UTC @ Planet Clang

The LLVM Foundation is excited to announce the program for the 2018 LLVM Developers' Meeting in San Jose, CA on October 17 & 18. As a reminder, ticket prices for the event will increase on September 17th. Purchase your tickets today! Technical Talks Lessons Learned Implementing Common Lisp with LLVM over Six Years - Christian Schafmeister, Anastasia Stulova Porting Function merging pass to thinlto - Aditya Kumar Build Impact of Explicit and C++ Standard Modules - David Blaikie Profile Guided Code Layout in

Friday, August 31, 20:30 UTC @ News - Apple Developer

As a reminder, in June the App Store Review Guidelines were updated to require a privacy policy for all new apps and app updates as part of the app review process. Starting October 3, 2018, App Store Connect will require a privacy policy for all new apps and app updates before they can be submitted for distribution on the App Store or through TestFlight external testing. In addition, your app’s privacy policy link or text will only be editable when you submit a new version of your app. Learn more about pr

Friday, August 31, 20:02 UTC @ Planet Lisp

New projects: cari3s — A generator for the i3 status bar. — Artisticcl-all — A script to evaluate expressions in multiple lisp implementations. — Artisticcl-collider — A SuperCollider client for CommonLisp — Public Domain

Friday, August 31, 19:58 UTC @ composition.al

This post has an accompanying Jupyter Notebook! How do you do, fellow kids? Over the last few months, I’ve been working my way through Data 8X, the online version of Berkeley’s Data 8 course, after seeing

Friday, August 31, 19:57 UTC @ Ole Begemann

Swift provides the Custom​String​Convertible and Custom​Debug​String​Convertible protocols to allow types to provide custom textual descriptions of themselves. If you read the documentation for these protocols, you’ll notice that accessing a value’s

Friday, August 31, 16:06 UTC @ Business of Software USA

Ever wished you could speak at Business of Software Conference? Well, here’s your chance. You have 7 days to submit a Lightning Talk for #BoS2018: 1-3 October, in Boston MA. The format for Lightning Talks is difficult: you have 7.5 minutes, and a slide deck that advances automatically every 30 seconds, to communicate something useful […] The post Why You Should Apply For A #BoS2018 Lightning T

Friday, August 31, 14:20 UTC @ Business of Software USA

A little-known fact about the Business of Software Conference is that every year a group of people attend BoS for less than $20. And you could be one of them this year. Thanks to our wonderful sponsors and attendees, there are a number of 99% reduced tickets for #BoS2018 available now. These tickets are available to deserving members of the software community […] The post Why You Should Apply For A

Friday, August 31, 13:53 UTC @ The Apache Software Foundation Blog

So long, August. Let's wrap up the month with a look back at our activities over the past week: ASF Board –management and oversight of the business affairs of the corporation in accordance with the Foundation's bylaws. - Next Board Meeting: 19 September. Board calendar and minutes http://... ApacheCon™ –the ASF's official global conference series, now in its 20th year.<

Friday, August 31, 10:48 UTC @ John D. Cook

Suppose you want to multiply two 2 × 2 matrices together. How many multiplication operations does it take? Apparently 8, and yet in 1969 Volker Strassen discovered that he could do it with 7 multiplications. Upper and lower bounds The obvious way to multiply two n × n matrices takes n³ operations: each entry in […]

Friday, August 31, 10:07 UTC @ 250bpm-blogs

Procopius praises them for being unlike other Huns, less like savage animals, more like civilized men with white bodies and laws to obey. Menander Protector, citing Peter the Patrician, asserts that they were in fact those Huns who decided to return to the east after the fall of Attila. Joshua the Stylite describes their military tactic as being "like that of other Huns; they pretend to flee and then turn upon their pursuers killing them mercilessly with long bows and short

Friday, August 31, 04:20 UTC @ Gödel’s Lost Letter and P=NP

Can 2.3728639 be best? Personal site; note puzzles Josh Alman is a graduate student at a technical school in the Boston area. He is working on matrix multiplication, among other problems in complexity theory, and is advised by Ryan Williams and Virginia Vassilevska Williams. Today we comment on his recent paper with Virginia on the […]

Friday, August 31, 00:48 UTC @ John D. Cook

I was looking back over an old blog post and noticed some code in the comments that I had overlooked. Tom Pollard gives the following code for drawing Spirograph-like curves. import matplotlib.pyplot as plt from numpy import pi, exp, real, imag, linspace def spiro(t, r1, r2, r3): """ Create Spirograph curves made by one circle of […]

Thursday, August 30, 19:54 UTC @ John D. Cook

I use Windows, Mac, and Linux, each for different reasons. When I run Windows, I like to have a shell that works sorta like bash, but doesn’t run in a subsystem. That is, I like to have the utility programs and command editing features that I’m used to from bash on Mac or Linux, but […]

Thursday, August 30, 16:03 UTC @ Martin Fowler

I've put a lot of hard work into the second edition of Refactoring. But I reckon that most people will be disappointed by it when it comes out, even though I think it's an improvement over the original. This memo explains why, and why I think that initial reaction ulti

Thursday, August 30, 15:26 UTC @ Martin Fowler

Praful completes the steps of extracting a data rich service by pointing the new service to the new database and removing the dead logic and schema from the monolith.

Thursday, August 30, 13:25 UTC @ Computational Complexity

The Simons Institute at Berkeley has two semester long programs this fall, Lower Bounds on Computational Complexity and Foundations of Data Science. The beginning of each program features a "boot camp" to get people up to speed in the field, complexity last week and

Thursday, August 30, 11:31 UTC @ The Geomblog

For the last X years (X being a confidential and never to be revealed number, but large enough that AI was more than just deep learning at the time), Sergei Vassilvitskii and I have been toiling away at a book on clustering. The book isn't ready yet, but we do have a draft of part I (the core of the book). Check it out, and send any comments you might have to clusteringbook@gmail.com.

Wednesday, August 29, 14:03 UTC @ Martin Fowler

A rough cut of the book (after copy-edit, but before proofing) is now available on Safari. more…

Wednesday, August 29, 13:40 UTC @ Hacker Noon - Medium

Wednesday, August 29, 13:21 UTC @ John D. Cook

If you don’t get any outside input into your life, you’re literally an idiot, someone in your own little world. But if you get too much outside input, you become a bland cliche. I’ve written about this a couple times, and ran across a new post this morning from someone expressing a similar idea. I […]

Wednesday, August 29, 11:51 UTC @ Martin Fowler

Two steps today from Praful's service extraction article. Step 6 creates a new database for the service and 7 syncs the data from the monolith

Tuesday, August 28, 19:09 UTC @ Martin Fowler

Now Praful lets clients of the catalog switch over to use the new product pricing service, they don't all have to move at the same time, but they do have to move before we can continue the migration.

Tuesday, August 28, 12:45 UTC @ Quality Coding

Refactoring remains a much-misunderstood discipline. Even when folks do have unit tests to back their changes, how long does the code stay broken? Let’s return to the idea that refactoring happens in very small steps. No, even smaller than that. Motivating example Remember this code from the code smells exercise? I made the names generic […]

Tuesday, August 28, 04:00 UTC @ This Week in Rust

Hello and welcome to another issue of This Week in Rust! Rust is a systems language pursuing the trifecta: safety, concurrency, and speed. This is a weekly summary of its progress and community. Want something mentioned? Tweet us at @ThisWeekInRust or send us a pull request. Want to get involved?

Tuesday, August 28, 00:00 UTC @ objc.io

We’re currently rewriting the Swift Talk backend in Swift. When debugging, we had a strange crash processing an XMLDocument on Linux. Most of Foundation is implemented on Linux, but the implementation isn’t as battle-tested as Foundation on macOS and iOS. Whenever you write code that needs to run on Linux, it’s a good idea

Monday, August 27, 22:36 UTC @ Computational Complexity

This Fall I am teaching the senior course in Crypto at UMCP. Its a nice change of pace for me since REAL people REALLY use this stuff! Contrast to last Spring when I taught Ramsey Theory and its `Applications' There is one topic in the Crypto course that LOOKS really useful but I can't tell if it IS being used, so I inquire of my readers. (I will probably come across others topics like that in the future.) A Secure Stream Cipher is (informally

Monday, August 27, 16:47 UTC @ Planet Lisp

A Road to Common Lisp - Steve Losh

Monday, August 27, 16:00 UTC @ Signal v. Noise - Medium

Monday, August 27, 15:26 UTC @ Martin Fowler

Praful's 4th step is to build the new service, which initially uses the tables in the monolith. more

Monday, August 27, 15:17 UTC @ Martin Fowler

The transcript of my Agile Australia keynote on agile in 2018. I comment that although agile is now mainstream, much of what is done is faux-agile. I outline three main challenges: stop Agile Industrial Complex imposing process raise importance of tech excellence prefer products over projects and one reason to be optimistic more…

Monday, August 27, 13:37 UTC @ John D. Cook

Pareto’s 80-20 rule says that 80% of your results often come from 20% of your effort. Maybe 80% of your profit comes from 20% of your customers, or maybe 80% of the bugs in your software are removed in the first 20% of the time you spend debugging. The rule is named after Italian economist […]

Monday, August 27, 00:00 UTC @ The Syndicate

You won’t work with Codable, JSONDecoder and JSONEncoder for long before you run into this issue: the keys in your JSON payload don’t match up with the property names in your Codable type. Here’s a s

Sunday, August 26, 19:21 UTC @ Not Even Wrong

Hasn’t been much that I’ve heard about worth discussing here recently. Presumably everyone is on vacation. I’ll try and gather some things that may be of interest, starting first with the hot topic of “quantum computation”. It looks like this … Continue reading →

Sunday, August 26, 12:57 UTC @ Computational Complexity

Sunday, August 26, 11:09 UTC @ Emilian Bold's blog

I'm exploring NetBeans Web Toolkit with the articles here NetBeans Web Toolkit is the new name I'm trying to give to Jaroslav Tulach's HTML/Java API, a rather impressive library that deserves more use.

Sunday, August 26, 09:30 UTC @ Backreaction

“When the universe expands, into what is it expanding? In what medium is it expanding? Is the universe like a bubble in a higher dimension something? [Anonymous], Indiana, USA” [image: luftballon-profi.at] This is a very good question and one, I should add, I get frequently. It is, I believe, to no small part caused by the common illustrations of a curved universe: it’s a rubber-sheet with

Sunday, August 26, 09:30 UTC @ Backreaction

“When the universe expands, into what is it expanding? In what medium is it expanding? Is the universe like a bubble in a higher dimension something? [Anonymous], Indiana, USA” [image: luftballon-profi.at] This is a very good question and one, I should add, I get frequently. It is, I believe, to no small part caused by the common illustrations of a curved universe: it’s a rubber-sheet with

Sunday, August 26, 07:00 UTC @ NSHipster

On the web, speed isn’t a luxury; it’s a matter of survival. User studies in recent years suggest that any perceivable latency in page load time — that is, greater than 400 milliseconds (literally in the blink of an eye) — can negatively impact conversion and engagement rates. For every additional second that a webpage takes to load, one should expect 10% of users to swipe back or close the tab. For large internet

Sunday, August 26, 06:52 UTC @ Backreaction

I’ll be traveling the next two weeks. First I am in Santa Fe, giving both a colloquium and a public lecture, and then I am in Oslo, giving two talks, one at the Kavli Symposium and one at the public library. Later in September I’ll be in London at HowTheLightGetsIn. The first week of October, I’ll be in NYC and afterwards in Lexington, Kentucky. The week after that I’ll be at the international

Sunday, August 26, 06:52 UTC @ Backreaction

I’ll be traveling the next two weeks. First I am in Santa Fe, giving both a colloquium and a public lecture, and then I am in Oslo, giving two talks, one at the Kavli Symposium and one at the public library. Later in September I’ll be in London at HowTheLightGetsIn. The first week of October, I’ll be in NYC and afterwards in Lexington, Kentucky. The week after that I’ll be at the international

Sunday, August 26, 01:57 UTC @ Planet Lisp

Implementing non-blocking algorithms is one of the few things that are easier to code in a kernel than in userspace (the only other one I can think of is physically wrecking a machine). In the kernel, we only have to worry about designing a protocol that achieves forward progress even if some threads stop participating. We must guarantee the absence of conceptual locks (we can’t have operations that must be paired, or barriers that

Saturday, August 25, 23:32 UTC @ John D. Cook

Archaic measurement systems were much more complicated than the systems we use today. Even modern imperial units, while more complicated than metric (SI) units, are simple compared to say medieval English units. Why didn’t someone think of something like the metric system a thousand years ago? I imagine they did. I don’t think they were […]

Saturday, August 25, 19:47 UTC @ Planet Lisp

A while back I wrote a bit about my adventures with a game engine technique called Geometry Clipmaps and my difficulties in implementing them. After spending what was supposed to be a week wherein I create a game fixing and completing an implementation of the Clipmaps instead, I think I'm now ready to talk about it. I'll also try to answer the questions I posed in the previous e

Saturday, August 25, 17:43 UTC @ Lambda the Ultimate - Programming Languages Weblog

History of Lisp (The history of LISP according to McCarthy's memory in 1978, presented at the ACM SIGPLAN History of Programming Languages Conference.) This is such a fun paper which I couldn't find on LtU. It's about the very early history of programming (1950s and '60s), back when things we take for granted today didn't exist yet. On taking apart complex data structures with functions like CAR and CDR:

Saturday, August 25, 16:53 UTC @ Gödel’s Lost Letter and P=NP

A riff on writing style and rating systems Cropped from source Mark Glickman is a statistician at Harvard University. With Jason Brown of Dalhousie University and Ryan Song also of Harvard—we’ll call them GBS—he has used musical stylometry to resolve questions about which Beatle wrote which parts of which songs. He is also a nonpareil […]

Saturday, August 25, 12:05 UTC @ John D. Cook

My first math classes used the terms one to one and onto to describe functions. These Germanic names have largely been replaced with their French equivalents injective and surjective. Monic and epic are the category theory analogs of injective and surjective respectively. This post will define these terms and show how they play out in several contexts. In […]

Friday, August 24, 20:46 UTC @ Signal v. Noise - Medium

Friday, August 24, 17:12 UTC @ Gorilla Logic

Much like a pod of whales or a pack of wolves, did you know that a group of gorillas is called a band? In this blog series, we’re going to introduce you to members of our band – engineers, technical recruiters, PMs, designers, and more who make up the most important asset in Gorilla Logic…our […] The post Member of the Band – Lucia Carpio Solano UI/UX Developer

Friday, August 24, 16:48 UTC @ Martin Fowler

During the last couple of weeks, my work on the refactoring book has focused on tidying up various loose ends for the print book. We’re now at the point where the production work is now in the hands of Alina Kirsanova, who sorts out the composition of the book, together with proof reading. C

Friday, August 24, 15:16 UTC @ Azimuth

Our new journal Compositionality is now open for submissions! It’s an open-access journal for research using compositional ideas, most notably of a category-theoretic origin, in any discipline. Topics may concern foundational structures, an organizing principle, or a powerful tool. Example areas include but are not limited to: computation, logic, physics, chemistry, engineering, linguistics, and cognition. […]

Friday, August 24, 14:29 UTC @ The Apache Software Foundation Blog

** this post is our 500th "Foundation" entry on blogs.apache.org ... shout-outs, emojis, and ascii art welcome <g> ** Hello, hello! It's time for our Friday review of our activities over the past week: ASF Board –management and oversight of the business affairs of the corporation in accordance with the Foundation's bylaws. - Next Board Meeting: 19 September. Board calendar and minutes http://...

Friday, August 24, 13:05 UTC @ Martin Fowler

Praful now moves onto the second step: creating a logical separation for the new service inside the existing monolith

Friday, August 24, 13:05 UTC @ Martin Fowler

For step 3, Praful separates the future service's data into a separate table within the monolith.

Friday, August 24, 12:50 UTC @ The Realmac Blog

Stacks is, hands-down, the most popular addon for RapidWeaver. It gives you the tools to create any type of layout with drag-and-drop ease.In this post, we’ll get you up and running with Stacks and RapidWeaver 8, but if you want a quick video overview, How to use Stacks

Friday, August 24, 10:25 UTC @ brucknerite

El sueño de la canícula ha traído una noticia quizá inesperada para quien no esté al cabo de la calle de las evoluciones del ministerio español de Fomento (encargado de la planificación y ejecución de las obras públicas de impacto nacional). Sin embargo, algo como lo que se divulgó hace unos días ha sido una … Sigue leyendo «Bienvenido, Mr

Friday, August 24, 05:41 UTC @ Planet Clang

The LLVM Foundation is excited to announce our first half day Women in Compilers and Tools Workshop held the day before the 2018 LLVM Developers’ Meeting - Bay Area. The workshop will be held at the Fairmont Hotel on October 16th from 1:00-6:30PM and includes a cocktail reception.This event aims to connect women in the field of compilers and tools and provide them with ideas and techniques to overcome barriers or enhance their careers. It also is open to anyone (not just women) who are interested in incre

Thursday, August 23, 22:54 UTC @ John D. Cook

A recent video by Quanta Magazine says that the eigenvalues of random matrices and the zeros of the Riemann zeta function appear to have the same distribution. I assume by “random matrices” the video is referring specifically to Gaussian orthogonal ensembles. [Update: See the first comment below for more details. You need some assumptions on […]

Thursday, August 23, 20:09 UTC @ Gorilla Logic

In this blog post, I want to show what I have been learning about Erlang concurrency. Let’s start first with a definition of Erlang taken from Erlang’s own page: “Erlang is a general-purpose programming language and runtime environment. Erlang has built-in support for concurrency, distribution and fault tolerance.” In other words, Erlang is a functional […] The post Playing with Erlang Con

Thursday, August 23, 19:40 UTC @ x.ai

By following the A.M.Y. rules for (meeting) engagement, you can set up more productive meetings. The post The A.M.Y. rules of (meeting) engagement appeared first on x.ai.

Thursday, August 23, 15:06 UTC @ Terra Incognita

Introduction Concentration inequalities, or probability bounds, are very important tools for the analysis of Machine Learning algorithms or randomized algorithms. In statistical learning theory, we often want to show that random variables, given some assumptions, are close to its expectation with high probability. This article provides an overview of the most basic inequalities in the analysis...

Thursday, August 23, 13:23 UTC @ Computational Complexity

A couple of years ago, Rossman, Servedio and Tan showed that the polynomial-time hierarchy is infinite relative to a random oracle. That is if you choose each string independently to be in or out of an oracle R with probability one, the polynomial-time hierarchy will be infinite relative to R with probability one. This is one in the measure theory sense, there are oracles where it is false, it is just that th

Thursday, August 23, 13:13 UTC @ Martin Fowler

As people get more interested in microservices, there is a growing interest in how to split up an existing monolith into microservices. A few months ago Zhamak Dehghani explored the basic strategy of breaking a monolith into microservi

Thursday, August 23, 10:00 UTC @ The Apache Software Foundation Blog

Advanced Big Data query engine and analytic database in use at Alibaba, Haier, VMWare, ZTESoft, and hundreds more. Wakefield, MA —23 August 2018— The Apache Software Foundation (ASF), the all-volunteer developers, stewards, and incubators of more than 350 Open Source projects and initiatives, announced today Apache® HAWQ® as a Top-Level Project (TLP). Apache HAWQ is an advanced e

Wednesday, August 22, 21:00 UTC @ News - Apple Developer

Your app promotion on the App Store can now reach people in 13 countries across North America, Europe, and Asia Pacific. Discover this efficient and easy way to help people find your app at the top of relevant search results on the App Store.Learn more about Search Ads

Wednesday, August 22, 19:18 UTC @ Gorilla Logic

For the fifth year, Gorilla Logic has been named to the Inc. 5000 list of fastest growing innovators. Gorilla Logic joins an elite group of industry visionaries who have been named to this select list five times. Gorilla Logic CEO Stu Stern shared his excitement about achieving this milestone, emphasizing, “We are proud to be […] The post Gorilla Logic Makes the Inc. 5000 List for

Wednesday, August 22, 10:44 UTC @ The Realmac Blog

RapidWeaver 8 has just launched, and it's our most significant release yet. It's packed with new features and enhancements, but before we get into the details, I need to warn you; this is an epic blog post with a lot of content.We had a few goals for RapidWeaver 8,

Wednesday, August 22, 10:15 UTC @ The Realmac Blog

RapidWeaver 8 comes with a brand-new Device Simulator that allows you to preview your site in any device - be it an iPhone X, iPad Pro, or a 27" iMac - without ever leaving RapidWeaver. It’s now easier than ever before to check how your site looks and

Wednesday, August 22, 10:03 UTC @ Azimuth

John Foley, Joe Moeller and I have made some nice progress on compositional tasking for the Complex Adaptive System Composition and Design Environment project. ‘Compositional tasking’ means assigning tasks to networks agents in such a way that you can connect or even overlay such tasked networks and get larger ones. This lets you build up […]

Wednesday, August 22, 00:24 UTC @ Indie Stack

In case you haven’t heard, macOS Mojave is bringing a new “Apple Events sandbox” that will affect the behavior of apps that send Apple Events to other apps either directly, or by way of running an AppleScript. I wrote more about this on my non-development blog, Bitsplitting: Reauthorizing Automation in Mojave. Typically, the system is … Continue reading Apple Ev

Tuesday, August 21, 21:49 UTC @ TED Blog

Crazy Rich Asians, a new Hollywood film that is an adaptation of the best-selling book by Kevin Kwan, topped the box office over the weekend, proving the “power of diversity (again).” The romantic comedy is a major motion picture with big studio backing and a reported budget of $30 million. For Hollywood it also presents […]

Tuesday, August 21, 05:58 UTC @ Backreaction

Roger Penrose really should have won a Nobel Prize for something. Though I’m not sure for what. Maybe Penrose-tilings. Or Penrose diagrams. Or the Penrose process. Or the Penrose-Hawking singularity theorems. Or maybe just because there are so many things named after Penrose. And at 87 years he’s still at it. Penrose has a reputation for saying rude things about string theory, has his own

Tuesday, August 21, 05:58 UTC @ Backreaction

Roger Penrose really should have won a Nobel Prize for something. Though I’m not sure for what. Maybe Penrose-tilings. Or Penrose diagrams. Or the Penrose process. Or the Penrose-Hawking singularity theorems. Or maybe just because there are so many things named after Penrose. And at 87 years he’s still at it. Penrose has a reputation for saying rude things about string theory, has his own

Monday, August 20, 17:59 UTC @ Signal v. Noise - Medium

Monday, August 20, 15:48 UTC @ Signal v. Noise - Medium

Monday, August 20, 15:47 UTC @ Backreaction

Tam Hunt. [Tam Hunt, photo on the right, is a renewable energy lawyer in Hawaii and an “affiliate” in the Department of Psychological and Brain Sciences at UC Santa Barbara. (Scare quotes his, not mine, make of this what you wish.) He has also published some papers about philosophy and likes to interview physicists. The below is an email interview he conducted with Carlo Rovelli about the

Monday, August 20, 15:47 UTC @ Backreaction

Tam Hunt. [Tam Hunt, photo on the right, is a renewable energy lawyer in Hawaii and an “affiliate” in the Department of Psychological and Brain Sciences at UC Santa Barbara. (Scare quotes his, not mine, make of this what you wish.) He has also published some papers about philosophy and likes to interview physicists. The below is an email interview he conducted with Carlo Rovelli about the

Monday, August 20, 08:18 UTC @ Use Your Loaf

Did you spot that iOS 11 added a couple of new layout guides to UIScrollView? If you find using Auto Layout with a scroll view confusing they might help you remember how to add your constraints. I read a great post recently by Agnes Vasarhelyi on Scrollable UIStackView which describes setting up constraints for a scroll view. It reminded me that I meant to take a look at the new layout guides Apple added to

Monday, August 20, 07:00 UTC @ NSHipster

By the 1930’s, Rube Goldberg had become a household name, synonymous with the fantastically complicated and whimsical inventions depicted in comic strips like “Self-Operating Napkin.” Around the same time, Albert Einstein popularized the phrase “spooky action at a distance” in his critiqu

Monday, August 20, 04:09 UTC @ Computational Complexity

Some graphs are 2-colorable, some graphs are 3-colorable, some graphs are...Does it make sense to say that a graph is 2.1-colorable? It does!(Source_ Factional Graph Theory by Schneinerman and Ullman-- I saw a talk on this by Jim Propp a long time ago.) Def 1: A graph is (a,b)-colorable (with a \ge b) if you can assign to every vertex a set of b numbers from {1,...,a} such that if u and v are adjacent then the set of numbers are disjoint. Note that k-colorable is (k,1)-colorable. Let chi_b(G) b

Sunday, August 19, 08:31 UTC @ Azimuth

I’ve been talking about my new paper with Jade Master: • John Baez and Jade Master, Open Petri nets. In Part 1 we saw the double category of open Petri nets; in Part 2 we saw the reachability semantics for open Petri nets as a double functor. Now I’d like to wrap up by showing […]

Sunday, August 19, 07:35 UTC @ Planet Lisp

In my previous post about VAX LISP, I complained about a misfeature of the editor that prevented binding editor functions to the Ctrl-S and Ctrl-Q keys. In the manual, it is stated that these keys cannot be bound due to "system restrictions". It appears, though, that it is a measure to prevent users from footing themselves in the foot because Ctrl-S and Ctrl-Q could be sent by terminals to implement

Sunday, August 19, 03:35 UTC @ Gödel’s Lost Letter and P=NP

Not anything to do with electrical engineering Alexei Miasnikov, Alexander Ushakov, and Dong Wook Won are the authors of a brilliant paper, “Power Circuits, Exponential Algebra, and Time Complexity.” It and several followup papers give polynomial-time algorithms for problems in group theory where only highly exponential algorithms were previously known. The algorithms use a new […]

Sunday, August 19, 00:00 UTC @ Pedro Piñera

As a developer who likes and believes in the benefits of making our software open, I devoted a vast amount of time building open source libraries and tools in the open. It helps me learn and grow as a software engineer and experiment with things I can’t experiment with at work. In most cases, those contributions happen before/after work, when you need to care about other important things in life like family, friends, and health. Yes, those things are more important than work or open source, regardless

Saturday, August 18, 21:39 UTC @ Cocoa Samurai

Swift contains protocols in which you can declare methods, which something claiming to adhere to the protocol must implement. One thing Swift protocols can’t do are optional methods... sort of. In Objective-C we’d specify an optional method in a protocol like so @protocol MyProtcol -(void)someRequiredMethod:(id)param; @optional -(void)someOptionalMethod:(id)param; @end In Swift you

Saturday, August 18, 13:04 UTC @ 250bpm-blogs

She was nineteen when she joined Gliese Liberation Movement. She didn't fight in the insurgency, of course. She lived at Earth, twenty light years away from the conflict. However, she did attend the protests and she did help with the distribution of leaflets. She had a poster of comandante Iñigo hung above her bed. Part Che Guevara, part Zorro the Avenger, the young daredevil with a wry smile and a submachine gun guarded her sleep. Once, she sent him a letter. May

Saturday, August 18, 09:00 UTC @ Azimuth

I’d like to continue talking about this paper: • John Baez and Jade Master, Open Petri nets. Last time I explained, in a sketchy way, the double category of open Petri nets. This time I’d like to describe a ‘semantics’ for open Petri nets. In his famous thesis Functorial Semantics of Algebraic Theories, Lawvere introduced […]

Saturday, August 18, 03:49 UTC @ tecosystems

anyone know what happens if you refuse to leave your vacation rental? A post shared by stephen o'grady (@stephenogrady) on Aug 3, 2018 at 6:29pm PDT As those of you who follow me on social media may have seen, I’ve already had my annual summer week up north in a cottage on the water. Which

Saturday, August 18, 03:49 UTC @ tecosystems

anyone know what happens if you refuse to leave your vacation rental? A post shared by stephen o'grady (@stephenogrady) on Aug 3, 2018 at 6:29pm PDT As those of you who follow me on social media may have seen, I’ve already had my annual summer week up north in a cottage on the water. Which

Friday, August 17, 20:11 UTC @ joe cieplinski

Me, back in April 2016: “Get rid of Time Travel. It’s a gimmick, and I activate it accidentally more often than not.” Today, on AppleInsider:  RIP Time Travel - A seldom-used Apple Watch feature set to disappear with watchOS 5  Far too many items on the rest of

Friday, August 17, 19:55 UTC @ TED Blog

Healthcare is at a turning point. Big data, evolving consumer preferences and shifting cost structures are just a few of the many complex factors shaping the opportunities and challenges that will define the future. How can we all become forces for positive change and progress? For the first time, TED partnered with Optum, a health […]

Friday, August 17, 17:26 UTC @ TED Blog

We’ve been on break but the TED community definitely hasn’t — here are some highlights from the past few weeks. Black Panther’s Shuri stars in her own comic. Writer Nnedi Okorafor will team up with visual artist Leonardo Romero to bring Marvel’s newest Black Panther comic series to life. Shuri will follow Wakandan princess and […

Friday, August 17, 17:25 UTC @ tecosystems

The interesting thing about interviewing analyst candidates for RedMonk is that you literally have no idea where the conversations will take you. As a firm that intentionally casts a wide net, our applicants come from a wide range of backgrounds and bring very different experiences to the table. From former CIA operatives to current CTOs,

Friday, August 17, 17:25 UTC @ tecosystems

The interesting thing about interviewing analyst candidates for RedMonk is that you literally have no idea where the conversations will take you. As a firm that intentionally casts a wide net, our applicants come from a wide range of backgrounds and bring very different experiences to the table. From former CIA operatives to current CTOs,

Friday, August 17, 13:29 UTC @ The Apache Software Foundation Blog

Happy Friday from the Apache community! Let's delve into what's happened over the past week: ASF Board –management and oversight of the business affairs of the corporation in accordance with the Foundation's bylaws. - Next Board Meeting: 19 September. Board calendar and minutes http://... ApacheCon™ –the ASF's official global conference series, now in its 20th y

Friday, August 17, 02:30 UTC @ Gödel’s Lost Letter and P=NP

A great choice Cropped from 2016 KTH grant news source Johan Håstad is the winner of the 2018 Donald E. Knuth Prize. We were going to keep you in suspense, but one of our “blog invariants” is to lead with the name(s) of those who are featured. He is very well deserving. And he has […]

Friday, August 17, 00:57 UTC @ Not Even Wrong

(Warning, this is just more about the topic of the last posting, which for most people will be a good reason to stop reading now. On the other hand, if you’re obsessed with the controversy over string theory, you might … Continue reading →

Thursday, August 16, 18:05 UTC @ TED Blog

Tiq Milan and Kim Katrin Milan brought warmth and light to the TEDWomen stage in 2016, sharing their vision of queer love and possibility. As a Black trans activist, writer and media maker, Tiq Milan expands the cultural imaginary on what it is to live beyond the margins. It’s an interesting time to be Tiq; he’s […]

Thursday, August 16, 17:38 UTC @ Computational Complexity

(Johan Hastad won the Knuth Prize! The below post was written before I knew that but has a mild connection to it. See here for more info on the Hastad winning it, or see Lance's tweet, or see Boaz's blog post here. There will prob be other blogs about it as well. ADDED LATER: Lipton and Regan have a post on this

Thursday, August 16, 09:38 UTC @ The Realmac Blog

Hot on the heels of the initial RapidWeaver 8 launch, we have the rather lovely 8.0.1 release of everybody's favourite web design app on the Mac. This new version fixes up a bunch of minor issues that snuck through our beta testing process. Check in-app for updates or

Wednesday, August 15, 17:57 UTC @ joe cieplinski

I’ve been talking myself out of building this app for three years. That’s how long I’ve been logging my caffeine intake with my iPhone and wishing there were a better way to do it. Over the years, I’ve tried just about all the caffeine apps. Most

Wednesday, August 15, 15:24 UTC @ Azimuth

Jade Master and I have just finished a paper on open Petri nets: • John Baez and Jade Master, Open Petri nets. Abstract. The reachability semantics for Petri nets can be studied using open Petri nets. For us an ‘open’ Petri net is one with certain places designated as inputs and outputs via a cospan […]

Wednesday, August 15, 14:51 UTC @ gilded : rust

I strongly suggest using something like Swift's libsytax for representing syntax trees if the end goal here is to create better tooling. I have an implementation in Rust, which probably could be extracted into a crate if there's inter

Wednesday, August 15, 12:02 UTC @ Planet Lisp

The back story Back in the day, when there still existed a number of different computer architectures and operating systems, I was a huge fan of the VAX/VMS operating system. VMS was designed together with the VAX architecture, and it used specific mechanisms offered by the processor to implement

Tuesday, August 14, 16:18 UTC @ Indie Stack

In the latest Mojave public beta, I noticed a foreboding warning in the console when I build and run FastScripts, my macOS scripting utility: FastScripts [...] is calling TIS/TSM in non-main thread environment, ERROR : This is NOT allowed. Please call TIS/TSM in main thread!!! Ruh-roh, that doesn’t sound good. Particularly with the emphasis of … Continue reading Let it Rip

Tuesday, August 14, 13:45 UTC @ Computational Complexity

After the Oxford Workshop I enjoyed a two-week family vacation in Spain, where there was no rain in the plain, just very hot up to 106℉. The old Spanish cities knew how to optimize for shade and breeze, more than I can say for Oxford.

Tuesday, August 14, 10:37 UTC @ The Realmac Blog

After more than a year in development, I'm excited to say that RapidWeaver 8 is finally here, and it's packed with new features and countless refinements.

Tuesday, August 14, 08:00 UTC @ FreeBSD Security Advisories

Tuesday, August 14, 08:00 UTC @ FreeBSD Security Advisories

Tuesday, August 14, 08:00 UTC @ FreeBSD Security Advisories

Monday, August 13, 23:44 UTC @ Not Even Wrong

In recent weeks string theory has been again getting a lot of press attention, because of claims that new progress is being made in the study of the relation of string theory and the real world, via the study of … Continue reading →

Monday, August 13, 17:33 UTC @ Ole Begemann

I wrote a handy little snippet for creating a UIAlertController with a single text field to request an input from the user. Its main feature, beside a slightly nicer API: you can pass in a validation rule that continuously checks if the input is valid as the user enters text. The OK button will only be enabled once the input passes validation. Here’s a demo that uses the .nonEmpty validation

Monday, August 13, 16:57 UTC @ Planet Lisp

(Don't get too excited by the "success" in the title of this post.) A brief SBCL RISC-V update this time, as there have been no train journeys since the last blog post. Most of what has been achieved is trivial definitions and rearrangements. We've defined some more of the MOVE Virtual Ope

Monday, August 13, 14:38 UTC @ TED Blog

TEDWomen co-host Pat Mitchell writes: Once again this summer, I had the privilege of moderating sessions during the Spotlight Health Aspen Institute Ideas Festival. There were some surprises in a session titled “Breakthroughs and Challenges in Women’s Health” with importance for all women, and I want to share some of that information with you. With two esteemed [̷

Monday, August 13, 09:25 UTC @ Backreaction

Through Two Doors at Once: The Elegant Experiment That Captures the Enigma of Our Quantum Reality Hardcover  By Anil Ananthaswamy Dutton (August 7, 2018) The first time I saw the double-slit experiment, I thought it was a trick, an elaborate construction with mirrors, cooked up by malicious physics teachers. But no, it was not, as I was soon to learn. A laser beam pointed at a plate with two

Monday, August 13, 09:25 UTC @ Backreaction

Through Two Doors at Once: The Elegant Experiment That Captures the Enigma of Our Quantum Reality Hardcover  By Anil Ananthaswamy Dutton (August 7, 2018) The first time I saw the double-slit experiment, I thought it was a trick, an elaborate construction with mirrors, cooked up by malicious physics teachers. But no, it was not, as I was soon to learn. A laser beam pointed at a plate with two

Monday, August 13, 07:00 UTC @ NSHipster

When you make a Genius Bar reservation at an Apple Store, you’re instructed to show up at a particular time of day and check in with the concierge. After directing you to pull up a stool, the concierge adds you to the queue and makes a note about how to identify you. According to anonymous reports from former retail employees, there are strict guidelines about how customers can be described. Nothing about their physical appearance is used: age, gender, ethnici

Sunday, August 12, 16:19 UTC @ gilded : rust

TL;DR: I wrote a library to generate macro_rules!()-syntax-diagrams as SVGs directly from code. Demo here, code here. At work, I have implemented some network-parsing code using nom. While I'm very glad about the result, reading nom's macro-heavy documentation gave me a

Saturday, August 11, 01:00 UTC @ Azimuth

  I’ll be speaking at a conference celebrating the centenary of Emmy Noether’s work connecting symmetries and conservation laws: • The Philosophy and Physics of Noether’s Theorems, 5-6 October 2018, Fischer Hall, 1-4 Suffolk Street, London, UK. Organized by Bryan W. Roberts (LSE) and Nicholas Teh (Notre Dame). They write: 2018 brings with it the […]

Friday, August 10, 18:29 UTC @ Gorilla Logic

Much like a pod of whales or a pack of wolves, did you know that a group of gorillas is called a band? In this blog series, we’re going to introduce you to members of our band – engineers, technical recruiters, PMs, designers, and more who make up the most important asset in Gorilla Logic…our […] The post Member of the Band – Gabriela Oropeza Back End Developer

Friday, August 10, 16:31 UTC @ tecosystems

They’re a month overdue, and from the volume of inbound questions about when the language rankings would drop, it’s been noticed. As always, these are a continuation of the work originally performed by Drew Conway and John Myles White late in 2010. While the means of collection has changed, the basic process remains the same:

Friday, August 10, 16:31 UTC @ tecosystems

They’re a month overdue, and from the volume of inbound questions about when the language rankings would drop, it’s been noticed. As always, these are a continuation of the work originally performed by Drew Conway and John Myles White late in 2010. While the means of collection has changed, the basic process remains the same:

Friday, August 10, 13:42 UTC @ The Apache Software Foundation Blog

Another lovely week draws to a close. Here's what the Apache community has been up to: Success at Apache –a monthly blog series that focuses on the processes behind why the ASF "just works". - The Apache Legal Shield - A Pragmatic View, by Bertrand Delacrétaz https://... ASF Board –management and oversight of the business affairs of the corporation in accordance with the Foundation's bylaws. - Next Boar

Friday, August 10, 13:18 UTC @ gilded : rust

submitted by /u/kvarkus [link] [comments]

Thursday, August 09, 21:08 UTC @ Ole Begemann

Following up on last week’s article on migrating an Objective-C class to Swift using extensions, I’d like to discuss an alternative approach: adding a Swift subclass to the Objective-C class you want to convert, as suggested by Jérôme Alves (thanks!): […] But another great solut

Thursday, August 09, 18:20 UTC @ Gorilla Logic

Innovation is rapidly shifting to the cloud, with many vendors employing a cloud-first approach to product design and solution offerings. Gorilla Logic has honed its expertise in leading cloud technologies from both AWS and Microsoft Azure. Recently we became a Microsoft Partner – achieving Silver status in their Cloud Solution Provider (CSP) Partner Network.   […] The post Gorill

Thursday, August 09, 14:52 UTC @ The Realmac Blog

After more than a year in development, I'm pleased to say that RapidWeaver 8 for Mac will ship next week on, Tuesday, 14th August 2018. I think RapidWeaver 8 is going to be a must-have upgrade, the whole team has worked so hard to integrate as many requests from users

Thursday, August 09, 08:00 UTC @ FreeBSD News Flash

Wednesday, August 08, 22:00 UTC @ News - Apple Developer

You can now watch all the session videos from this year’s Apple Worldwide Developers Conference with Japanese and Simplified Chinese subtitles.View WWDC18 videos

Wednesday, August 08, 19:48 UTC @ x.ai

By slotting Amy + Andrew into email templates, you can automate even more of your scheduling workflow. The post Using Gmail’s Canned Responses with Amy + Andrew appeared first on x.ai.

Wednesday, August 08, 03:37 UTC @ Computational Complexity

On June 29, 2018, a workshop was held, in conjunction with STOC 2018, to celebrate the accomplishments of Vijay Vazirani on the occasion of his 60th birthday, organized by his PhD students, Aranyak Mehta, Naveen Garg and Samir Khuller. The workshop was called "TCS: Looking into the Future" and true to the title, it was prec

Tuesday, August 07, 17:36 UTC @ Planet Lisp

In our first post, I summarized the work of a few evenings of heat and a few hours on a train, being basically the boilerplate (parenthesis-infested boilerplate, but boilerplate nonetheless) necessary to get an SBCL cross-compiler built. At that point, it was possible to start running make-host-2.sh, attempting to use the cross-compiler to build the Lis

Tuesday, August 07, 13:48 UTC @ ACM Queue - All Queue Content

Since you both are working on the same code base, you also have ample opportunity for leadership by showing this person how you code. You must do this carefully or the junior programmer will think you're pulling rank, but, with a bit of gentle show and tell, you can get your Padawan to see what you're driving at. This human interaction is often difficult for those of us who prefer to spend our days with seemingly logical machines. Mentorship is the ultimate test of leadership and compassion, and I really ho

Tuesday, August 07, 09:51 UTC @ Backreaction

“Is it possible that our ‘elementary’ particles are actually large scale aggregations of a different set of something much smaller? Then, from a mathematical point of view, there could be an infinite sequence of smaller (and larger) building blocks and universes.”                                                                       ~Peter Letts Dear Peter, I love the idea that there is a

Tuesday, August 07, 09:51 UTC @ Backreaction

“Is it possible that our ‘elementary’ particles are actually large scale aggregations of a different set of something much smaller? Then, from a mathematical point of view, there could be an infinite sequence of smaller (and larger) building blocks and universes.”                                                                       ~Peter Letts Dear Peter, I love the idea that there is a

Tuesday, August 07, 00:21 UTC @ The Apache Software Foundation Blog

by Bertrand Delacretaz I became active in the ASF in 2001 via Gianugo Rabellino -- he was the one who started the discussions with Apache Fop about me donating the jfor XLS-FO to RTF converter that I had developed earlier. It was already too late to uninvent RTF which is a terrible format, but I digress. I am currently a member of the Board of Directors of the ASF and have been doing a lot of thinking (and presentations) about what makes the ASF tick in terms of collabor

Tuesday, August 07, 00:00 UTC @ Planet Lisp

8 months after the original announcement, we finally open-sourced Quickref. The complete source code is available here. I gave a lightning talk at ELS 2018, in which I claimed I would release the code

Monday, August 06, 21:35 UTC @ Not Even Wrong

Back now from vacation. On the global warming front, I can report that Northern Norway has gotten rather warm, Svalbard is still pretty cold. While I was away the big mathematics news was from the ICM. As everyone expected, one … Continue reading →

Monday, August 06, 17:25 UTC @ Gödel’s Lost Letter and P=NP

A few twists on Turing’s proof of undecidability of predicate calculus By permission of Rich Longmore, artist, blog source Alan Turing presaged Stephen Cook’s proof of -completeness of Turing reduced the halting problem for his machines to the decision problem of the first-order predicate calculus, thus showing (alongside Alonzo Church) that the latter is undecidable. […]

Monday, August 06, 15:42 UTC @ Use Your Loaf

I think my favourite addition to Swift 4.2 might be having the compiler automatically generate an allCases collection for enums. How Many Cases In My Enum? It is often useful to know how many cases an enum has or to be able to iterate over all possible cases. Before Swift 4.2 you either needed to use a meta-programming tool like Sourcery or manually maintain the collection:

Monday, August 06, 14:36 UTC @ The Realmac Blog

RapidWeaver has always given you the power to create an SEO-friendly website. However, RapidWeaver 8 introduces a whole host of excellent new SEO features that can help your website rank higher in Google. In this post, I’ll cover all the new SEO features that have been added to RapidWeaver

Monday, August 06, 10:45 UTC @ Gorilla Logic

Augmented reality (AR) and machine learning are the hottest technologies on the market right now, so what we are going to build this time is a face recognition app that identifies people in our office and shows basic information when the app identifies someone who has been registered. In this first post, we are going […] The post How to Build a Face Recogniti

Monday, August 06, 08:00 UTC @ FreeBSD Security Advisories

Monday, August 06, 07:00 UTC @ NSHipster

One of my favorite activities, when I travel, is to listen to people as they pass and try to guess what language they’re speaking. I’d like to think that I’ve gotten pretty good at it over the years (though I rarely get to know if I guessed right). If I’m lucky, I’ll recognize a word or phrase as a cognate of a language I’m familiar with, and narrow things down from there. Otherwise, I try to build up a phonetic inventory, listening for what kind

Monday, August 06, 07:00 UTC @ Google Cloud Platform Blog

Ten years, three months and 30 days ago, we wrote our first post on this blog, and now, we’re writing our last at this particular web address. Today, it’s with great excitement that we present to you the Google Cloud blog, your home for all the latest GCP product news, how-to’s, perspectives and customer stories that you

Friday, August 03, 17:36 UTC @ Gorilla Logic

In July of 2018, I had the great opportunity to participate as a representative of Costa Rica at the Cybersecurity Summer Bootcamp in Leon, Spain. This is an activity made by  The Spanish National Cybersecurity Institute, S.A. (INCIBE) with the Organization of American States (OAS), as a training program specializing in cybersecurity for people who […] The post Cybersecurity Summer Bootcamp 2018 a

Friday, August 03, 17:25 UTC @ joe cieplinski

If you make an app and want people to buy it, you have to link to the App Store so your customers can get it. If you write reviews of apps, you need to post links to the apps, because your readers will think you’re nuts if you don’

Friday, August 03, 16:22 UTC @ The Apache Software Foundation Blog

Welcome, August! We hope you have had a great week. Let's take a peek at what the Apache community has been up to: ASF Board –management and oversight of the business affairs of the corporation in accordance with the Foundation's bylaws. - Next Board Meeting: 15 August. Board calendar and minutes http://... ApacheCon™ –the ASF's official glob

Friday, August 03, 14:00 UTC @ Google Cloud Platform Blog

The month of July saw our Google Cloud Next ‘18 conference come and go, and there was plenty of exciting news, updates and demos to share from the show. Here’s a look at some of the most-read blog posts from July. What caught your attention this month: Creating the open cloud One of the most-read posts this month covered the lau

Friday, August 03, 13:55 UTC @ Planet Lisp

I'm on a train! (Disclaimer: I'm not on a train any more.) What better thing to do, during the hot, hot July days, thank something semi-mechanical involving very little brain power? With student-facing work briefly calming down (we've just about weathered the storm of appeals and complaints following the publication of exam results), and the all-too-brief Summer holidays approaching, I caught myself thinking that it wasn't fair that Doug and his team should have

Thursday, August 02, 08:38 UTC @ The Realmac Blog

RapidWeaver 8 will bring a whole host of fantastic new features to your favourite web design app. In this post, I wanted to cover the updates we’ve made to the theme styling engine. The additions we’ve made to the theme styling engine will enable you to customise your

Thursday, August 02, 07:11 UTC @ APIDesign - Blogs

Fighting with deadlocks is hard in normal code. In case of APIs it is even harder. Yet, the advice is simple Never hold a lock when calling a foreign code. See the typical example rewritten to be deadlock-free in th

Wednesday, August 01, 20:50 UTC @ Computational Complexity

There are three questions I ask in my Formal Lang Theory class that even the very best students get wrong. Two I knew were trick quesions, the other I was surprised by 1) If w is a string then SUBSEQ(w) is all strings you can form by replacing some symbols in w with empty string. SUBSEQ(L) is defined in the obv way. I ask the following in class (not on an exam). TRUE or FALSE and WHY and we'll discuss If L is regular then SUBSEQ(L) is regular If L is context free

Wednesday, August 01, 18:57 UTC @ Gorilla Logic

As a company grows, more and more information is generated. This information comprises HR policies, administrative and technical processes, company benefits and IT know-how. As the resources within the company increase, the need to place them in an easily-accessible repository becomes critical.   In response to this issue, a few of us at Gorilla Labs […] The post Wins

Wednesday, August 01, 15:07 UTC @ ACM Queue - All Queue Content

Over one-fourth of Googlers use internal, data-center-hosted virtual desktops. This on-premises offering sits in the corporate network and allows users to develop code, access internal resources, and use GUI tools remotely from anywhere in the world. Among its most notable features, a virtual desktop instance can be sized according to the task at hand, has persistent user storage, and can be moved between corporate data centers to follow traveling Googlers. Until recently, our virtual desktops were hosted o

Wednesday, August 01, 14:00 UTC @ Google Cloud Platform Blog

By James O’Keeffe, Senior Site Reliability Engineer To support our Google Cloud Platform (GCP) customers, we run a complex global network that depends on multiple providers and a lot of hardware. Google network engineering uses a diverse set of vendor equipment to route user traffic from an internet service provider to one of our serving front ends inside a GCP data center. This equipment is proprietary

Wednesday, August 01, 11:01 UTC @ Backreaction

I promised my daughters I would write a song in German, so here we go:   “Trostpreis” means “consolation prize”. This song was inspired by the kids’ announcement that we have a new rule for pachisi: Adults always lose. I think this conveys a deep truthiness about life in general.  After I complained the last time that the most frequent question I get about my music videos is “where do you

Wednesday, August 01, 11:01 UTC @ Backreaction

I promised my daughters I would write a song in German, so here we go:   “Trostpreis” means “consolation prize”. This song was inspired by the kids’ announcement that we have a new rule for pachisi: Adults always lose. I think this conveys a deep truthiness about life in general.  After I complained the last time that the most frequent question I get about my music videos is “where do you