On the evaluation of cardinality-based generalized yes/no queries

被引:0
|
作者
Bosc, Patrick [1 ]
Lietard, Nadia [1 ]
Pivert, Olivier [1 ]
机构
[1] IRISA ENSSAT, 6 Rue Kerampont BP 80518, F-22305 Lannion, France
关键词
III-known values; possibilistic databases; world-based interpretation; cardinality-based queries;
D O I
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
This paper deals with the querying of possibilistic relational databases, by means of generalized yes/no queries whose form is: "to what extent is it possible and certain that the answer to Q satisfies property P". Here, we consider cardinality-based generalized yes/no queries (in this case, property P is about cardinality) for which a processing technique is proposed, which avoids computing all the worlds attached to the possibilistic database.
引用
收藏
页码:198 / 203
页数:6
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