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Improving retrieval results with discipline-specific query expansion


Lüke, Thomas; Schaer, Philipp; Mayr, Philipp


Bitte beziehen Sie sich beim Zitieren dieses Dokumentes immer auf folgenden Persistent Identifier (PID):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)
Thesaurusschlagwörter information retrieval; information system; information management; thesaurus; standardization (meth.); information capture; data bank; comparison of methods; evaluation
Klassifikation Information und Dokumentation, Bibliotheken, Archive; Informationswissenschaft
Freie Schlagwörter Digitale Bibliothek; Digital Library; Search-Term-Recommendation; Term Suggestion; Query Expansion
Titel Sammelwerk, Herausgeber- oder Konferenzband Theory and Practice of Digital Libraries : Second International Conference, TPDL 2012
Herausgeber Zaphiris, Panayiotis; Buchanan, George; Rasmussen, Edie; Loizides, Fernando
Konferenz 2. International Conference "Theory and Practice of Digital Libraries". Paphos, Zypern, 2012
Sprache Dokument Englisch
Publikationsjahr 2012
Verlag Springer
Erscheinungsort Heidelberg
Seitenangabe S. 408-413
Schriftenreihe 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 Veröffentlichungsversion; begutachtet
Lizenz Deposit Licence - Keine Weiterverbreitung, keine Bearbeitung