Exploiting External Collections for Query Expansion
نویسندگان
چکیده
منابع مشابه
Using Multiple External Collections for Query Expansion
First, we investigated the possibility of using query sessions from PubMed query logs for improving the estimation of a relevance model. In a typical search scenario, a user may submit multiple queries before she actually finds satisfactory search results. These closely related queries form a single query session which represents a single information need. By finding relevant query sessions wit...
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Dewey Decimal Classification has been used to organize materials owned by the three scientific libraries at the University of Pavia, and to allow integrated browsing in their union catalogue through SciGator, a home built web-based user interface. Classification acts as a bridge between collections located in different places and shelved according to different local schemes. Furthermore, cross-...
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Many user queries nowadays contain references to named entities, which has motivated the development of new methods that exploit entity semantics for query expansion. At the same time, Wikipedia has been widely recognized as a large network of named entities, where entity-related articles are organized into a comprehensive hierarchy of categories and present summarized information on these enti...
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In this paper, we present an efficient semantic query expansion methodology based on a question concept list comprised of terms that are semantically close to concepts represented in a query. The proposed system first constructs a concept list for each question concept and then learns the concept list for each question concept. When a new query is given, the question is classified into the ques...
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ژورنال
عنوان ژورنال: ACM Transactions on the Web
سال: 2012
ISSN: 1559-1131,1559-114X
DOI: 10.1145/2382616.2382621