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Efficient IR-Style Keyword Search over Relational Databases

Seminar on Databases and the Internet The Hebrew University of Jerusalem, Winter 2006. Efficient IR-Style Keyword Search over Relational Databases. 12 December 2005. Introduction. This presentation is mainly based upon the work of Hristidis, Gravano, and Papakonstantinou.

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1.2k views • 102 slides

Computing Full Disjunctions

Computing Full Disjunctions. Maximal Answers. How to Avoid Losing Information When Joining Relations. Partial Information is Lost. Dangling tuples disappear when joining relations, because the result has only complete tuples. ?. =. Maximal vs. Complete Answers. ?. =.

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606 views • 51 slides

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Tuple sets - PowerPoint PPT Presentation

Efficient IR-Style Keyword Search over Relational Databases

Computing Full Disjunctions