The aim of this paper is to propose a novel query expansion method to improve accuracy of text retrieval systems. Our technique makes use of a minimal explicit relevance feedback to expand an initial query with a structured representation called Weighted Word Pairs. Such a structure can be automatically extracted from a set of documents and uses a method for term extraction based on the probabilistic Topic Model. Evaluation has been conducted on TREC-8 repository and the proposed approach has been compared with other baseline query expansion schemes; experiments confirmed that the proposed method obtain a better performance than the baseline.

Colace, F., De Santo, M., Greco, L., Napoletano, P. (2014). Query expansion through weighted word Pairs. In 22nd Italian Symposium on Advanced Database Systems, SEBD 2014 (pp.399-406). Universita Reggio Calabria and Centro di Competenza (ICT-SUD).

Query expansion through weighted word Pairs

NAPOLETANO, PAOLO
Ultimo
2014

Abstract

The aim of this paper is to propose a novel query expansion method to improve accuracy of text retrieval systems. Our technique makes use of a minimal explicit relevance feedback to expand an initial query with a structured representation called Weighted Word Pairs. Such a structure can be automatically extracted from a set of documents and uses a method for term extraction based on the probabilistic Topic Model. Evaluation has been conducted on TREC-8 repository and the proposed approach has been compared with other baseline query expansion schemes; experiments confirmed that the proposed method obtain a better performance than the baseline.
No
paper
Scientifica
Explicit relevance feedback; Probabilistic topic model; Query expansion; Text retrieval; Software
English
22nd Italian Symposium on Advanced Database Systems, SEBD 2014
9781634391450
Colace, F., De Santo, M., Greco, L., Napoletano, P. (2014). Query expansion through weighted word Pairs. In 22nd Italian Symposium on Advanced Database Systems, SEBD 2014 (pp.399-406). Universita Reggio Calabria and Centro di Competenza (ICT-SUD).
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/10281/56733
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