Stephen E. Robertson, Hugo Zaragoza, Michael J. Taylor. Simple BM25 extension to multiple weighted fields. In David A. Grossman, Luis Gravano, ChengXiang Zhai, Otthein Herzog, David A. Evans, editors, Proceedings of the 2004 ACM CIKM International Conference on Information and Knowledge Management, Washington, DC, USA, November 8-13, 2004. pages 42-49, ACM, 2004. [doi]
Abstract is missing.