This paper proposes a novel query expansion method to improve accuracy of text retrieval systems. Our method makes use of a minimal relevance feedback to expand the initial query with a structured representation composed of weighted pairs of words. Such a structure is obtained from the relevance feedback through a method for pairs of words selection based on the Probabilistic Topic Model. We compared our method with other baseline query expansion schemes and methods. Evaluations performed on TREC-8 demonstrated the effectiveness of the proposed method with respect to the baseline.

Colace, F., De Santo, M., Greco, L., Napoletano, P. (2015). Weighted Word Pairs for query expansion. INFORMATION PROCESSING & MANAGEMENT, 51(1), 179-193 [10.1016/j.ipm.2014.07.004].

Weighted Word Pairs for query expansion

Napoletano, P
2015

Abstract

This paper proposes a novel query expansion method to improve accuracy of text retrieval systems. Our method makes use of a minimal relevance feedback to expand the initial query with a structured representation composed of weighted pairs of words. Such a structure is obtained from the relevance feedback through a method for pairs of words selection based on the Probabilistic Topic Model. We compared our method with other baseline query expansion schemes and methods. Evaluations performed on TREC-8 demonstrated the effectiveness of the proposed method with respect to the baseline.
Articolo in rivista - Articolo scientifico
Explicit relevance feedback; Model; Probabilistic; Pseudo-relevance feedback; Query expansion; Text retrieval; Topic; Media Technology; Information Systems; Computer Science Applications1707 Computer Vision and Pattern Recognition; Library and Information Sciences; Management Science and Operations Research
English
179
193
15
Colace, F., De Santo, M., Greco, L., Napoletano, P. (2015). Weighted Word Pairs for query expansion. INFORMATION PROCESSING & MANAGEMENT, 51(1), 179-193 [10.1016/j.ipm.2014.07.004].
Colace, F; De Santo, M; Greco, L; Napoletano, P
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/56699
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