About Cardinality-based Possibilistic Queries against Possibilistic Databases
نویسندگان
چکیده
This paper deals with the querying of possibilistic relational databases, by means of possibilistic queries whose general form is: "to what extent is it possible that the answer to Q satisfies property P". Here, we consider cardinality-based 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. .H\ZRUGV Ill-known values, possibilistic databases, world-based interpretation.
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تاریخ انتشار 2005