Abstract: Topic drift phenomenon is the main problem of the query expansion optimization.To solve the problem,a query expansion method based on task context is proposed.It aims to improve the precision of query expansion by adding appropriate words chosen from task context.Experiments show that this method can get more relevant search results than other methods.
Publication Year: 2010
Publication Date: 2010-01-01
Language: en
Type: article
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Cited By Count: 1
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