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Erschienen in:
2014 | OriginalPaper | Buchkapitel
On N-term Co-occurrences
verfasst von : Mario Kubek, Herwig Unger
Erschienen in: Recent Advances in Information and Communication Technology
Verlag: Springer International Publishing
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Since 80% of all information in the World Wide Web (WWW) is in textual form, most of the search activities of the users are based on groups of search words forming queries that represent their information needs. The quality of the returned results -usually evaluated using measures such as precision and recall- mostly depends on the quality of the chosen query terms. Therefore, their relatedness must be evaluated accordingly using and matched against the documents to be found. In order to do so properly, in this paper, the notion of n-term co-occurrences will be introduced and distinguished from the related concepts of n-grams and higher-order co-occurrences. Finally, their applicability for search, clustering and data mining processes will be considered.