Document (#33044)

Author

Zazo, A.F.
Figuerola, C.G.
Berrocal, J.L.A.
Rodriguez, E.

Title

Reformulation of queries using similarity-thesauri

Source

Information processing and management. 41(2005) no.5, S.1163-1174

Year

2005

Abstract

One of the major problems in information retrieval is the formulation of queries on the part of the user. This entails specifying a set of words or terms that express their informational need. However, it is well-known that two people can assign different terms to refer to the same concepts. The techniques that attempt to reduce this problem as much as possible generally start from a first search, and then study how the initial query can be modified to obtain better results. In general, the construction of the new query involves expanding the terms of the initial query and recalculating the importance of each term in the expanded query. Depending on the technique used to formulate the new query several strategies are distinguished. These strategies are based on the idea that if two terms are similar (with respect to any criterion), the documents in which both terms appear frequently will also be related. The technique we used in this study is known as query expansion using similarity thesauri.

Theme

Semantisches Umfeld in Indexierung u. Retrieval

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5. Karisani, P.; Rahgozar, M.; Oroumchian, F.: Transforming LSA space dimensions into a rubric for an automatic assessment and feedback system (2016) 0.28

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