Improved Text Scoring with BM25

Dd9d954997353b37b4c2684f478192d3?s=47 Elastic Co
February 19, 2016

Improved Text Scoring with BM25

Today the default scoring algorithm in Elasticsearch is TF/IDF. This default will change to BM25 once Elasticsearch switches to Lucene 6. In this talk, Britta will tell you all about BM25 – what it is, how it differs from TF/IDF and other scoring techniques, and why it might be the better default going forward.


Elastic Co

February 19, 2016