Glossary term
Glossary term
Memory and Retrieval
Retrieval that combines keyword search with semantic vector search.
Elasticsearch 8.x supports hybrid search combining BM25 keyword scoring with approximate nearest-neighbour vector search, used by eBay to serve 1.9 billion product listings with both exact-match and semantic relevance.
Weaviate's hybrid search is used by a pharmaceutical company to search drug interaction reports - exact drug-name matches are boosted via BM25, while semantic search surfaces conceptually similar compounds.
Typesense's hybrid search handles both typo-tolerant keyword queries ('authenication') and semantic queries ('how do I log in with Google'), serving both with a single index on a SaaS documentation site.