Position-based contextualization for passage retrieval

David Carmel, Anna Shtok, Oren Kurland
2013 Proceedings of the 22nd ACM international conference on Conference on information & knowledge management - CIKM '13  
We present a novel contextualization approach for passage retrieval. The core principle is to let any occurrence of a query term in a document affect the passage retrieval score, whether the occurrence is in the passage or not. This effect is controlled by the distance between the term occurrence and the passage. Empirical evaluation demonstrates the merits of our approach; the resultant retrieval performance substantially transcends that of previously proposed passage retrieval methods,
more » ... ng those that use various contextualization approaches.
doi:10.1145/2505515.2507865 dblp:conf/cikm/CarmelSK13 fatcat:4sfwqafmp5buljhqeylgybhrxq