Synonyms
Definition
Given a source query Qs over a source schema and a target query template over a target schema, query translation generates a query that is semantically closest to the source query and syntactically valid to the target schema. The semantically closest is measured by a closeness metrics, typically defined by precision and/or recall of a translated query Versus a source query over a database content. Syntax validness indicates the answerability of a translated query over the target schema. Therefore, the goal of query translation is to find a query that is answerable over the target schema and meanwhile retrieves the closest set of results as the source query would retrieve over a database content.
Historical Background
Query translation is an essential problem in any data integration system and has been studied extensively in the database area. Since a data integration system needs to integrate many different sources, query translation...
Recommended Reading
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Zhang, Z. (2016). Query Translation. In: Liu, L., Özsu, M. (eds) Encyclopedia of Database Systems. Springer, New York, NY. https://doi.org/10.1007/978-1-4899-7993-3_1070-2
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DOI: https://doi.org/10.1007/978-1-4899-7993-3_1070-2
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