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Improving retrieval results with discipline-specific query expansion

[conference paper]

Lüke, Thomas; Schaer, Philipp; Mayr, Philipp

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Please use the following Persistent Identifier (PID) to cite this document:http://nbn-resolving.de/urn:nbn:de:0168-ssoar-46479-9

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Abstract Choosing the right terms to describe an information need is becoming more difficult as the amount of available information increases. Search- Term-Recommendation (STR) systems can help to overcome these problems. This paper evaluates the benefits that may be gained from the use of STRs in Query Expansion (QE). We create 17 STRs, 16 based on specific disciplines and one giving general recommendations, and compare the retrieval performance of these STRs. The main findings are: (1) QE with specific STRs leads to significantly better results than QE with a general STR, (2) QE with specific STRs selected by a heuristic mechanism of topic classification leads to better results than the general STR, however (3) selecting the best matching specific STR in an automatic way is a major challenge of this process. (author's abstract)
Keywords information retrieval; information system; information management; thesaurus; standardization (meth.); information capture; data bank; comparison of methods; evaluation
Classification Information and Documentation, Libraries, Archives; Information Science
Free Keywords Digitale Bibliothek; Digital Library; Search-Term-Recommendation; Term Suggestion; Query Expansion
Collection Title Theory and Practice of Digital Libraries : Second International Conference, TPDL 2012
Editor Zaphiris, Panayiotis; Buchanan, George; Rasmussen, Edie; Loizides, Fernando
Conference 2. International Conference "Theory and Practice of Digital Libraries". Paphos, Zypern, 2012
Document language English
Publication Year 2012
Publisher Springer
City Heidelberg
Page/Pages p. 408-413
Series Lecture notes in computer science, 7489
DOI http://dx.doi.org/10.1007/978-3-642-33290-6
ISSN 0302-9743
ISBN 978-3-642-33289-0
Status Published Version; reviewed
Licence Deposit Licence - No Redistribution, No Modifications