Notes & tools
Short pieces on the ideas behind the papers, written so they can be understood without reading the papers — and a few things you can run on your own numbers.
Notes
- Recommender systems when taste moves One number comes back per impression, and the shape of what someone likes keeps changing. Watch the probe–identify–exploit loop run, then put your own catalogue through it.
- Why you can’t look at a leaderboard twice A confidence interval is a promise about one look, and nobody reads a leaderboard once. An interactive note: drag a slider and watch the error rate climb from 5% to one in three.
Tools
- Leaderboard calculator Paste your own pairwise win counts. Get an anytime-valid bound on every claim, held over all pairs at once, and the number of votes an adversary would have to flip or forge before each claim stops holding. Runs entirely in your browser.
