Optimization of Queries over Interval Probabilistic Data

被引:0
|
作者
Magnani, Matteo [1 ]
Montesi, Danilo [1 ]
机构
[1] Univ Bologna, I-40126 Bologna, Italy
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暂无
中图分类号
TP18 [人工智能理论];
学科分类号
081104 ; 0812 ; 0835 ; 1405 ;
摘要
In this paper we deal with the logical and physical optimization of select-from-where queries over interval probabilistic data. We present a data model with algebraic equivalences, to be used to verify the equivalence of alternative query plans, and propose and compare different join algorithms over uncertain relations. We also provide a preliminary experimental evaluation of our contributions.
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页码:298 / 311
页数:14
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