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Enhancing Algebraic Query Relaxation with Semantic Similarity
release_pkgoonfow5cbvprzjqfyelfkwa
by
Lena Wiese
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as a article
.
2012
Abstract
Cooperative database systems support a database user by searching for answers
that are closely related to his query and hence are informative answers. Common
operators to relax the user query are Dropping Condition, Anti-Instantiation
and Goal Replacement. In this article, we provide an algebraic version of these
operators. Moreover we propose some heuristics to assign a degree of similarity
to each tuple of an answer table; this degree can help the user to determine
whether this answer is relevant for him or not.
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1210.6242v1
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