KSKaran Singhinskaran.hashnode.dev·4d ago · 6 min readBM25, 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 alm00
KSKaran Singhinskaran.hashnode.dev·5d ago · 7 min readSemantic 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 12K
