Paraphrasing Invariance Coefficient: Measuring Para-Query Invariance of Search Engines

author: Jinyun Yan, Department of Computer Science, Rutgers, The State University of New Jersey
published: May 17, 2010,   recorded: April 2010,   views: 282
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Description

Paraphrasing is the restatement (or reuse) of text which preserves its meaning in another form. A para-query is a paraphrase of a search query. Humans easily recognize paraqueries, but search engines are still far away from it. We claim that in order for a search engine to be called semantic it is necessary that it recognizes para-queries by returning the same search results for all para-queries of a given query. Recognizing para-queries is an important and desired ability of a search engine. It can relieve users of the burden of rephrasing queries in order to improve the relevance of results.

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