BM25, Explained ProperlyBM25 has ordered search results for more than twenty years. It's the default ranking function in Elasticsearch, OpenSearch, Solr, and Lucene - which means if you've ever run a keyword search, BM25 almJul 16 · 6 min readskaran.hashnode.dev
Semantic Search Isn't Enough: A Practitioner's Guide to Hybrid RetrievalEvery team that adds "AI search" to their product follows the same arc. They embed their documents, stand up a vector database, wire up nearest-neighbour search, and demo something that feels magical 12KJul 15 · 7 min readskaran.hashnode.dev
