Query Substitution based on N-gram Analysis
Xiaobing Xue, Van Dang, W. Bruce Croft · 2009
Query substitution replaces original query words with a new words that express the same meaning. In this paper, the technique of n-gram analysis is proposed to flnd the synonyms or quasi-synonyms of the original query word. The synonyms found are then incorporated into the original query with difierent methods. Experiments show that the proposed n-gram analysis techniques can obtain interesting synonyms, which help to improve retrieval efiectiveness.