Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
515737 | Information Processing & Management | 2008 | 18 Pages |
Abstract
We demonstrate effective new methods of document ranking based on lexical cohesive relationships between query terms. The proposed methods rely solely on the lexical relationships between original query terms, and do not involve query expansion or relevance feedback. Two types of lexical cohesive relationship information between query terms are used in document ranking: short-distance collocation relationship between query terms, and long-distance relationship, determined by the collocation of query terms with other words. The methods are evaluated on TREC corpora, and show improvements over baseline systems.
Related Topics
Physical Sciences and Engineering
Computer Science
Computer Science Applications
Authors
Olga Vechtomova, Murat Karamuftuoglu,