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Julia and the Reincarnation of Lisp (2020)
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Gaussian Processes from Scratch (2019)
This post explores some concepts behind Gaussian processes, such as stochastic processes and the kernel function. We will build up deeper understanding of Gaussian process regression by implementing them from scratch using Python and NumPy.
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Biden launches action on "Big Tech, Big Pharma, and Big Ag" – can it be real?
"In the late 1930s, FDR’s Administration supercharged antitrust enforcement, increasing more than eightfold the number of cases brought in just two years."
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Interpreting 9/11 commemorative Afghan carpets (2011)
The most controversial and confronting of the many categories of Afghan “war carpets” made since the Soviet invasion in 1979 were those which first appeared in early 2002 and which memorialized the…
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The Cultural Implications of Silence Around the World (2020)
What does silence mean around the world?
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Cybersecurity and the curse of binary thinking
Working in information/cybersecurity and technology risk is a fascinating and challenging career, as I’ve covered here. There is, mostly, a great spirit of sharing and collaboration among security professionals. However, I’ve observed one disturbing and growing trend in the past few years that might be characterized…
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Why do we use R rather than Excel?
I recently had cause to take a beginners course in R - a language I'm fairly familiar with. One of the other students had never used it before, so we were buddied up in order for me to show them the ropes. The first lesson of R is always the same. Read a CSV, manipulate it a bit, draw a graph. We did it all without…
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Good and Bad Monitoring
You remember that time you passive-aggressively completed a story in the most useless way possible to check that checkbox? That’s most…
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The Death of the Festival
<p>(Part 1 of a multi-part series)</p> <p><em>We live a double life, civilized in scientific and technical matters,</em> <em>wild and primitive in the things of the soul. That we are no longer conscious of being primitive, makes our tamed kind of wildness all the more dangerous.</em> – Hans Von Hentig</p> <p>The…
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Automated Hydroponic System Build (2020)
Hydroponic farming is a method of growing crops without soil, with the main benefits of environmental and nutrient control, water conservation, and reduction of labor. This technique relies on a number of technologies that the principles of automation can be applied in order to improve yield and consistency. In this…
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How to manually merge two Apple IDs to one (2020)
Since 2020 is made for pain, I decided to make some big moves that I have been putting off for a while. The email migration took a while, but the new setup is so much better. My reliance on Google as a company is very minimal now. I am very
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I Stopped Using Emojis
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What DeepMind’s AlphaFold 2 really achieved (2020)
Disclaimer: this post is an opinion piece based on the experience and opinions derived from attending the CASP14 conference as a doctoral student researching protein modelling. When provided, quotes have been extracted from my notes of the event, and while I hope to have captured them as accurately as possible, I…
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A Chemical Hunger: Mysteries
The study of obesity is the study of mysteries.
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Using IceWM and a Raspberry Pi as my main PC, sharing my theme, config and some
Published: 10-07-2021 | Author: Remy van Elst | Text only version of this article
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Rethinking software testing: perspectives from the world of hardware (2019)
The conventional view of Software Testing The hardware and software worlds may seem poles apart, and in many ways, they indeed are. But there’s a wealth of knowledge that each can learn from the ot…
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PostgreSQL, Memory and the Cloud
This post explains how Linux memory overcommit and OOM-killer behavior can turn a single runaway query into a full PostgreSQL crash, and why many managed cloud database services fail to disable overcommit the way self-hosted PostgreSQL recommends.
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Nicole gets a real computer – the Microsoft Z80 SoftCard (2020)
So there I was, very happy with my Apple ][plus. But then I saw someone on the internet post, and it seems that my Apple is an overpriced box with a toy micr...
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Behind the scenes, AWS Lambda
How does AWS Lambda work under the hood? Let's find out together!
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25 Gigabit Linux internet router PC build
init7 recently announced that with their FTTH fiber offering Fiber7, they will now sell and connect you with 25 Gbit/s (Fiber7-X2) or 10 Gbit/s (Fiber7-X) fiber optics, if you want more than 1 Gbit/s. While this offer will only become available at my location late this year (or possibly later due to the supply chain…
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Ribbon filter: Practically smaller than Bloom and Xor
What the research is: The Ribbon filter is a new data structure that is more space-efficient than the popular Bloom filters that are widely used for optimizing data retrieval. One of the ways that …
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Against SQL
But SQL is the only widely-used implementation of the relational model, and it is:
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How I accidentally took down GitHub Actions (2019)
Last December, I was invited to a private bug bounty program to test a beta version of GitHub Actions. GitHub Actions is a workflow automation tool integrated with GitHub. One common use case of GitHub Actions is for CI builds – a project can fairly easily start up a Docker container every time they push a commit…
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Programmers, teach non-geeks the true cost of interruptions (2014)
Interruptions are one of the biggest sources of inefficiency for programmers. Now, to be fair, they’re probably a big source of inefficiency for everyone, but relatively speaking, they’re worse for programmers. To understand what I mean, let’s take someone whose job is in sales. A lot of the day is probably spent on…
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Arti, a pure-Rust Tor implementation
Greetings! Today I'm happy to announce a new era in Tor implementation. Over the past year or so, we've been working on "Arti", a project to rewrite Tor in Rust. Thanks to funding from Zcash Open Major Grants (ZOMG), we can finally put the Arti project up in our priorities list, and devote more time to it. Below I'll…
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