The design library
Building blocks, complete architectures, and variations worth comparing. Search by the problem you want to solve or a component you want to understand.
Classic designOfficial
Blur every face and licence plate in billions of street panoramas: tiles for tiny faces, recall-first detection, a batch pipeline that fails closed: one-hour boards for junior, senior and staff, with the theory behind them.
Classic designOfficial
Find the right videos for a typed query among billions: BM25 and a dual encoder over text, speech and frames, LambdaMART on debiased clicks, human raters: one-hour boards for junior, senior and staff, with the theory behind them.
Classic designOfficial
Rank upcoming events when every event is new and expires: geo and time candidates, live features, calibrated ranking, a two-sided market: one-hour boards for junior, senior and staff, with the theory behind them.
Classic designOfficial
Order each home feed so the time is worth it: candidate sources, a multi-task ranker and value model, integrity re-ranking and feedback loops: one-hour boards for junior, senior and staff, with the theory behind them.
Classic designOfficial
Suggest people a member knows out of a billion: bounded friends of friends, affiliations and contacts, two ranking heads, GNN embeddings, privacy and abuse: one-hour boards for junior, senior and staff, with the theory behind them.
Classic designOfficial
Pick 12 homes a guest could book instead, from listing embeddings learned on browsing sessions, filtered by dates and party size, then ranked: one-hour boards for junior, senior and staff, with the theory behind them.
Classic designOfficial
Find and act on posts that break the rules in text, images, video and live: hash matching, a calibrated multimodal model, review ranked by expected harm, prevalence: one-hour boards for junior, senior and staff, with the theory.
Classic designOfficial
Predict the chance a person clicks an ad, calibrated for the auction, at 10 B requests a day: sampling and its correction, DCN-V2, delayed clicks: one-hour boards for junior, senior and staff, with the theory behind them.
Classic designOfficial
Search by photo over a billion images: contrastive embeddings from engagement pairs, object crops, IVF-PQ with re-scoring, versioned indexes: one-hour boards for junior, senior and staff, with the theory behind them.
Classic designOfficial
Choose 20 videos out of 10 million for 100 million daily users: implicit labels, two-tower retrieval, a multi-task ranker, bias and exploration: one-hour boards for junior, senior and staff, with the theory behind them.