A first approach to possibilistic queries addressed to possibilistic databases

被引：0
|
作者：
Bosc, P [1 ]
Duval, L [1 ]
Pivert, O [1 ]
机构：
[1] ENSSAT, IRISA, Lannion, France
来源：
JOINT 9TH IFSA WORLD CONGRESS AND 20TH NAFIPS INTERNATIONAL CONFERENCE, PROCEEDINGS, VOLS. 1-5 | 2001年
关键词：
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：
It is now recognized that querying databases containing imprecise information raises several problems, including that of complexity. In this paper, we consider a new kind of queries, called possibilistic queries, of the form "to what extent is it possible that a given tuple t belongs to the answer of Q (a regular relational query)". This paper is a first attempt to show that a reasonable complexity can be expected for a specified subset of possibilistic queries.
引用
收藏
页码：2452 / 2457
页数：6
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