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The most popular blog posts about databases & data on Hacker News. 1,888 posts.
Table of Contents Agents Need to Interact With LLMs Agents Should Be Event-Driven Agents Need Context Agents Require Memory When SQL Is Not Enough Parting Thoughts AI Agents have improved in leaps …
An overview of new features in pgvector 0.5.0, including HNSW, parallel index builds, and more!
[Special thank you to Ian Kivlichan for many useful pointers (E.g. the 100+ year old Nature paper “Vox populi”) and nice feedback. 🙏 ] High-quality data is the fuel for modern data deep learning model training. Most of the task-specific labeled data comes from human annotation, such as classification task or RLHF…
Recently I was digging deeper into Raft , an important algorithm in the field of distributed systems. Raft is a consensus algorithm , meaning that it is designed to facilitate a set of computers agreeing on a state of the world (more on exactly how the state of the world is represented later), even when communications…
Exporting graph data to text file and SVG with Datalog
NoSQL databases were the future. MongoDB was the database for “modern” web engineers and used by countless startups. What happened?
In my last post I talked about why modern observability has become so expensive. At the end of the post I posit a question: What if by default we never send any telemetry at all? In this post I’m goin
Synchronization barriers let you test for race conditions with confidence.
A surge involving the rapidly-transmitting Delta variant in heavily vaccinated countries has led to much hand-wringing that the vaccines are not effective against Delta, or vaccine effectivenss wanes after 4-6 months. This has fueled anti-vaccine sentiment suggesting the vaccines are not working, and causing much…
I like slim and stupid servers, where each endpoint wraps a very dumb DB query. Dumb queries are fast. Fast queries make websites smooth and snappy. Keep those click/render loops sacred. Sweep complexity under a task table.
Josiah Carlson talks about Redis, Python, and other technology topics.
Most web content is displayed as a strict hierarchy, tree-based or otherwise. What if it wasn't?An exploration into the advantages of graph-based content design, the numerous pitfalls, and a few case studies along the way.
Many thanks to advocates inside and outside who worked tirelessly for years to liberate one of New York City’s most fundamental datasets. Many more thanks to the efforts of Department of City Planning, DoITT, and the Chief Analytics Officer’s office. THANK YOU!
The why and how of nonnegative matrix factorization Gillis, arXiv 2014 from: ‘Regularization, Optimization, Kernels, and Support Vector Machines.’ Last week we looked at the paper ‘Beyond news cont…
Recently I was working on a project where I have to cluster all the words which have a similar name. For a novice it looks a pretty simple job of using some Fuzzy string matching tools and get this done. However in reality this was a challenge because of multiple reasons starting from pre-processing of the data to…
FlapMMO is a new and popular browser game inspired by Flappy Bird. Unlike Flappy Bird, though, each server has hundreds of other players and you can all see each other. It's lots of fun and I previously posted about hacking FlapMMO for mouse control .
Administrivia This article was initially posted on Wikipedia in 2008, which explains why it's written at the 3rd person and looks familiar...
TLDR; get a list of 21,864 domains from the former Yugoslavia’s “.yu” top level domain: download the .CSV
Suppose for a moment that you are running a web site that has a poorly implemented password database that stores password hashes using some...
The CAP theorem is too simplistic and too widely misunderstood to be of much use for characterizing systems.
Recent media coverage of Onavo Protect encouraged me to investigate the code for the iOS version of their app. I wanted to determine what…
