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Pattern Recognition, International Conference on (2006)
Hong Kong
Aug. 20, 2006 to Aug. 24, 2006
ISSN: 1051-4651
ISBN: 0-7695-2521-0
pp: 703-706
Jiani Hu , Beijing University of Posts and Telecommunications 100876, Beijing, China
Weihong Deng , Beijing University of Posts and Telecommunications 100876, Beijing, China
Jun Guo , Beijing University of Posts and Telecommunications 100876, Beijing, China
ABSTRACT
In this paper, we propose a global analysis approach for query expansion in information retrieval. This approach, which concentrates on extracting associated expansion terms for a given query so as to improve the retrieval performance, can be divided into three stages. The first stage, called association calculation, is to measure associations between term-term pairs. The second stage focuses on how to select suitable terms for expansion. In the last stage, a reweighting scheme is introduced in order to clarify the impact of each expansion term. Experimental results on the TREC collection demonstrate the effectiveness of our approach.
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CITATION

J. Hu, W. Deng and J. Guo, "Improving Retrieval Performance by Global Analysis," 2006 18th International Conference on Pattern Recognition(ICPR), Hong Kong, 2006, pp. 703-706.
doi:10.1109/ICPR.2006.703
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