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Query expansion based on conceptual and contextual term relationships in Wikipedia


Wira-Alam, Andias; Saad, Farag; Mutschke, Peter


Bitte beziehen Sie sich beim Zitieren dieses Dokumentes immer auf folgenden Persistent Identifier (PID):http://nbn-resolving.de/urn:nbn:de:0168-ssoar-46815-2

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Abstract The dramatic increase in information on the World Wide Web makes it more difficult for web users using web search engines to effectively satisfy their information needs The users' lack of knowledge regarding the searched topics creates a complicated problem when formulating an effective query. Query expansion can play an essential role in overcoming such a deficit. However, because they lack sufficient knowledge about the searched topics, users sometimes find it difficult to evaluate the relatedness of the system's automatically expanded terms. This problem arises mostly in domain-specific areas, e.g Social Science. In this paper, we expand the queries based on a structured, open knowledge resource on the Web (Wikipedia). We link the entities from a domain-specific corpus (qualitative journals in social science) to Wikipedia entities. With Wikipedia serving as background knowledge, we help users with their selections by providing the most likely related terms. Furthermore, users are provided with contextual information that describes each expanded term in order to give users a clearer idea about the meaning of each expanded term. By utilizing 10 test queries chosen by experts who also evaluated the results, we compared the results of using Wikipedia with the results achieved by using a qualitative journal (author's abstract)
Thesaurusschlagwörter information and documentation; information management; search engine; information retrieval; information capture; concept; Wikipedia; expertise; level of information; Internet
Klassifikation Information und Dokumentation, Bibliotheken, Archive; Informationswissenschaft
Methode anwendungsorientiert
Titel Sammelwerk, Herausgeber- oder Konferenzband Informationswissenschaft zwischen virtueller Infrastruktur und materiellen Lebenswelten : Proceedings des 13. Internationalen Symposiums für Informationswissenschaft
Herausgeber Hobohm, Hans-Christoph
Konferenz 13. Internationales Symposium für Informationswissenschaft (ISI 2013). Potsdam, 2013
Sprache Dokument Englisch
Publikationsjahr 2013
Verlag Hülsbusch
Erscheinungsort Glückstadt
Seitenangabe S. 324-338
Schriftenreihe Schriften zur Informationswissenschaft, 63
ISBN 978-3-86488-035-3
Status Veröffentlichungsversion; begutachtet
Lizenz Deposit Licence - Keine Weiterverbreitung, keine Bearbeitung