Search, Ranking & Autocomplete

Inverted indexes, analyzers, TF-IDF and BM25, index sharding, near-real-time indexing, typeahead, and hybrid search.

0 / 5 solved
0/5 solved
Question Tags Difficulty Success
1. Case of the Missing Match
tokenizationanalyzer +1
Easy —
2. Diminishing Returns
bm25relevance-ranking
Medium —
3. One Field Two Indexes
inverted-indexanalyzers +2
Medium —
4. Ten Keystrokes Deep
trietypeahead +1
Hard —
5. Two Hundred Versus Eight
bm25ranking +2
Hard —

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5 of 5 questions here are still unsolved.