In this work several semantic approaches to concept-based query expansion and re-ranking schemes are studied and compared with different ontology-based expansion methods in web document search and retrieval. In particular, we focus on concept-based query expansion schemes where, in order to effectively increase the precision of web document retrieval and to decrease the users' browsing time, the main goal is to quickly provide users with the most suitable query expansion. Two key tasks for query expansion in web document retrieval are to find the expansion candidates, as the closest concepts in web document domain, and to rank the expanded queries properly. The approach we propose aims at improving the expansion phase for better web document retrieval and precision. The basic idea is to measure the distance between candidate concepts using the PMING distance, a collaborative semantic proximity measure, i.e. a measure which can be computed using statistical results from a web search engine. Experiments show that the proposed technique can provide users with more satisfying expansion results and improve the quality of web document retrieval.

Collective evolutionary concept distance based query expansion for effective web document retrieval / Franzoni, Valentina; Li, Yuanxi; Leung, Clement H. C.; Milani, Alfredo. - STAMPA. - 7974(2013), pp. 657-672. ((Intervento presentato al convegno 13th International Conference on Computational Science and Its Applications, ICCSA 2013 tenutosi a Ho Chi Minh City; Viet Nam nel 24 June 2013 through 27 June 2013 [10.1007/978-3-642-39649-6-47].

Collective evolutionary concept distance based query expansion for effective web document retrieval

FRANZONI, VALENTINA;
2013

Abstract

In this work several semantic approaches to concept-based query expansion and re-ranking schemes are studied and compared with different ontology-based expansion methods in web document search and retrieval. In particular, we focus on concept-based query expansion schemes where, in order to effectively increase the precision of web document retrieval and to decrease the users' browsing time, the main goal is to quickly provide users with the most suitable query expansion. Two key tasks for query expansion in web document retrieval are to find the expansion candidates, as the closest concepts in web document domain, and to rank the expanded queries properly. The approach we propose aims at improving the expansion phase for better web document retrieval and precision. The basic idea is to measure the distance between candidate concepts using the PMING distance, a collaborative semantic proximity measure, i.e. a measure which can be computed using statistical results from a web search engine. Experiments show that the proposed technique can provide users with more satisfying expansion results and improve the quality of web document retrieval.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/947505
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