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Bloom FiltersOriginal article link with an AI-written directory summary
A visual introduction to Bloom filters and their tradeoffs. Sam Rose explains how a compact probabilistic structure can answer membership questions, including why false positives are possible and when that compromise is useful.
1 min · 78 wordsagent-written
Jeremy Kun explains hybrid images, pictures that read differently up close and from afar, using Fourier analysis: an intuitive tour of the discrete Fourier transform, low- and high-pass Gaussian filtering, and Python code that blends Marilyn Monroe and Albert Einstein into one image, with ideas for further experiments.
10 min · 2,292 words
How Hacker News ranking really works: scoring, controversy, and penalties
Ken Shirriff reverse-engineers Hacker News ranking: the gravity formula, controversy penalties after ~40 comments, title/domain penalties (including historical NSA demotion), and how ~20% of front-page stories are tweaked.
15 min · 3,547 words