点播网络研讨会

Improved Text Scoring with BM25

videoImage

主办方

Britta Weber

Software Engineer

Elastic

亮点

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.