Improving retrieval results with discipline-specific query expansion

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)

Object Details

• Location: Deutsche Nationalbibliothek Frankfurt am Main
• Extent: Online-Ressource, 408-413 S.
• Language: Englisch
• Notes: Veröffentlichungsversion ; begutachtet ; In: Zaphiris, Panayiotis (Hg.), Buchanan, George (Hg.), Rasmussen, Edie (Hg.), Loizides, Fernando (Hg.): Theory and Practice of Digital Libraries : Second International Conference, TPDL 2012. 2012. S. 408-413. ISBN 978-3-642-33289-0

References and Relationships

• Bibliographic citation: Theory and Practice of Digital Libraries : Second International Conference, TPDL 2012 ; Bd. 7489 ; Lecture notes in computer science ; Bd. 7489

Classification and Topics

• Classification: Bibliotheks- und Informationswissenschaft

Contributors, Places and Time

• Event: Veröffentlichung
• (where): Heidelberg
• (who): Springer
• (when): 2012
• Creator: Lüke, Thomas ; Schaer, Philipp ; Mayr, Philipp
• Contributor: Zaphiris, Panayiotis ; Buchanan, George ; Rasmussen, Edie ; Loizides, Fernando

Further information

• DOI: 10.1007/978-3-642-33290-6
• URN: urn:nbn:de:0168-ssoar-46479-9
• Rights: Open Access unbekannt; Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Last update: 25.03.2025, 1:48 PM CET