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An Effective Semantic Cache for Exploiting XPath Query/View Answerability

Keywords: XML query processing,semantic cache,view selection,cache lookup

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Maintaining a semantic cache of materialized XPath views inside or outside the database is a novel,feasible and efficient approach to facilitating XML query processing.However,most of the existing approaches incur the following disadvantages:1) they cannot discover enough potential cached views sufficiently to effectively answer subsequent queries; or 2) they are inefficient for view selection due to the complexity of XPath expressions.In this paper,we propose SCEND, an effective Semantic Cache based on dEc...


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