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Okapi BM25
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About Okapi BM25 · from Wikipedia
In information retrieval, Okapi BM25 is a ranking function used by search engines to estimate the relevance of documents to a given search query. It is based on the probabilistic retrieval framework developed in the 1970s and 1980s by Stephen E. Robertson, Karen Spärck Jones, and others.
Summary from Wikipedia ↗, CC BY-SA 4.0.
Related work
- chaipat.cc, the ask-me-anything site Key work Nov 2026
Candidates come from two places at once: the graph neighbours of what was named, and passages of the wiki ranked with BM25 by the wiki full-text search.
- Wiki full-text search (chaipat.cc)
The wiki full-text search in src/search.js ranks passages of the wiki for a question with BM25.