469 search results - page 34 / 94 » Cluster-based query expansion |
158
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SIGIR
2008
ACM
15 years 4 months ago
2008
ACM
We address a specific enterprise document search scenario, where the information need is expressed in an elaborate manner. In our scenario, information needs are expressed using a...
124
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CLEF
2008
Springer
15 years 6 months ago
2008
Springer
In this paper, we assess the impact of using thesaurus-based query expansion methods, at the Information Retrieval (IR) stage of a Question Answering (QA) system. We focus on expan...
139
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TREC
2004
15 years 5 months ago
2004
In the domain of biomedical publications, synonyms and homonyms are omnipresent and pose a great challenge for document retrieval systems. For this year's TREC Genomics Ad ho...
166
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JCDL
2010
ACM
15 years 9 months ago
2010
ACM
Query expansion of named entities can be employed in order to increase the retrieval effectiveness. A peculiarity of named entities compared to other vocabulary terms is that they...
128
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ECIR
2010
Springer
15 years 5 months ago
2010
Springer
Abstract. Pseudo-Relevance Feedback (PRF) assumes that the topranking n documents of the initial retrieval are relevant and extracts expansion terms from them. In this work, we int...