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How to trick a neural network into thinking a panda is a vulture
When I go to Google Photos and search my photos for ‘skyline’, it finds me this picture of the New York skyline I took in August, without me having labelled it!
Most cited
Posts that commenters keep linking to, ranked by how many different people have cited them in Hacker News comments. 646 posts.
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The 100:10:1 method: my approach to open source
For many years I was whole hog into the open-source movement and at the time I rarely wrote a stitch of code in my free time that didn’t find itself in a public Sourceforge/GCode/Github repo. 1 However, over time I came to learn that the burden that came with publicly offering code to the universe, to put it mildly…
303
Elliptic Curve Cryptography: a gentle introduction
Those of you who know what public-key cryptography is may have already heard of ECC , ECDH or ECDSA . The first is an acronym for Elliptic Curve Cryptography, the others are names for algorithms based on it.
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Important Notice Regarding Public Availability of Stable Patches
grsecurity is the only drop-in Linux kernel replacement offering high-performance, state-of-the-art exploit prevention against both known and unknown threats.
305
Let a thousand flowers bloom, then rip 999 of them out
For the past eleven months I’ve been the tech lead for Twitter’s Engineering Effectiveness group. Engineering Effectiveness is our name for what elsewhere might be called Developer Tools, Developer Productivity, Engineering Infrastructure, or Developer Efficiency. We provide the tools and processes that allow the rest…
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World map of the difference between solar and clock time
A better map of the difference between solar and standard time, and some trivia
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Use Haskell for shell scripting
turtle 1.0 announcement post
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Why Intel Added Cache Partitioning
Typical server utilization is between 10% and 50%. Google has demonstrated 90% utilization without impacting latency SLAs . Xkcd estimated that Google owns 2 million machines . If you estimate an amortized total cost of $4k per machine per year , that's $8 billion per year. With numbers like that, even small…
309
Quadratic Voting (2014)
Glen Weyl has uploaded a new version of his paper, Quadratic Voting (written with Steven Lalley), to SSRN, which now includes the completed proofs. Quadratic voting is the most important idea for l…
310
Hacking Starbucks for unlimited coffee
We do penetration testing, source code auditing and vulnerability assessments
311
How Academia Resembles a Drug Gang (2013)
Academic systems rely on the existence of a supply of “outsiders” ready to forgo wages and employment security in exchange for the prospect of uncertain security, prestige, freedom and reasonably high salaries that tenured positions entail. Drawing on data from the US, Germany and the UK, Alexandre Afonso looks at how…
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Look Before You Leap – The Coming Leap Second and AWS
My colleague Mingxue Zhao sent me a guest post designed to make sure that you are aware of an important time / clock issue. Note: This post was first published on May 18, 2015. We made some important additions and corrections on May 25, 2015. — Jeff; The International Earth Rotation and Reference Systems (IERS) […]
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Dark corners of Unicode
I’m assuming, if you are on the Internet and reading kind of a nerdy blog, that you know what Unicode is. At the very least, you have a very general understanding of it — maybe “it’s what gives us emoji”. That’s about as far as most people’s understanding extends, in my experience, even among programmers. And that’s a…
318
What happens when DNS in China is poisoned and pointed at your server
I’ve been using the Internet in one form or another since the mid-80’s. In that time, I’ve seen a lot of strange stuff happening on our global network. On Tuesday, I experienced something extraordinary. It all started with a text message from my partner Ged at 8:30 AM: Mail server down. Please take a look […]
319
Must Be This Tall to Write Multi-Threaded Code
David Baron put this up in Mozilla’s San Francisco office a while back:
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Handling 1M Requests per Minute with Go
Here at Malwarebytes we are experiencing phenomenal growth, and since I have joined the company over 1 year ago in the Silicon Valley, one my main responsibilities has been to architect and develop several systems to power a fast-growing security company and all the needed infrastructure to support a product that is…
321
Regression to the mean is the main reason ineffective treatments appear to work
Jump to follow-up “Statistical regression to the mean predicts that patients selected for abnormalcy will, on the average, tend to improve. We argue that most improvements attributed to the p…
322
No, it’s not the end of XMPP for Google Talk
There’s some recent discussion about the sky falling for XMPP at Google. See this blog post by Dan York for example. In reality, we don’t know the state of XMPP inside Google because they don’t share their use of XMPP with the XSF. …
323
Clifford Algebra: A visual introduction (2014)
Clifford Algebra, a.k.a. Geometric Algebra, is a most extraordinary synergistic confluence of a diverse range of specialized mathematical fields, each with its own methods and formalisms, all of wh…
324
A Tale of Two Zippers
Recently, Akiba took me to visit his friend’s zipper factory. I love visiting factories: no matter how simple the product, I learn something new.
325
Wifibroadcast – Analog-like transmission of live video data
Wifibroadcast is a project aimed at the live transmission of HD video (and other) data using wifi radios. One prominent use case is to transmit camera images for a first person view (FPV) of remote…
326
The great Medieval water myth (2013)
A food history blog, focusing mainly on early medieval food and French bread history, written by Jim Chevallier (visit chezjim.com for more). .
327
Scaling Out PostgreSQL for CloudFlare Analytics Using CitusDB (YC S11)
When I joined CloudFlare about 18 months ago, we had just started to build out our new Data Platform. At that point, the log processing and analytics pipeline built in the early days of the company had reached its limits.
328
How the Dutch got their cycling infrastructure (2011)
How did the Dutch get their cycling infrastructure? This question keeps coming back because it is of course relevant to people who want what the Dutch have. Road building traditions go back a long …
329
Where to hate daylight saving time and where to love it
Update: a newer version of this little project helps you make your complaints about daylight saving time—whether they’re for or against it—with clearer messages about whether keeping DST, abolishing it, or making it permanent would be best for your daylight preferences. Give it a whirl over at Observable.
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Bell inequality violation finally done right
A few weeks ago, Hensen et al., of the Delft University of Technology and Barcelona, Spain, put out a paper reporting the first experiment that violates the Bell inequality in a way that closes off…