THE LIVING ARCHIVE

From punched cards to autonomous collaborators: the ideas, people, languages and systems that taught machines to follow—and increasingly interpret—human intent.

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Tag: stephen-robertson

Stephen Robertson, Okapi, and BM25: Ranking Documents by Probabilistic Relevance

BM25 grew from Stephen Robertson's probabilistic retrieval research and the Okapi system, combining term rarity, saturating term frequency and document-length normalization.

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