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Semantics of Fuzzy Temporal Databases Calculus | IEEE Conference Publication | IEEE Xplore

Semantics of Fuzzy Temporal Databases Calculus


Abstract:

This paper present a fuzzy temporal data model for uncertainty/implicit events more precisely, and introduce fuzzy temporal complex event value relations, which combine t...Show More

Abstract:

This paper present a fuzzy temporal data model for uncertainty/implicit events more precisely, and introduce fuzzy temporal complex event value relations, which combine the concept of fuzzy temporal relations with the idea of fuzzy temporal values in a uniform framework. We elaborate a model theoretic definition of fuzzy temporal information combination strategies, which has a rigorous foundation on fuzzy temporal theory. And then define an algebra for querying database instances. We prove that our data model and algebra for fuzzy temporal values generalizes the classical relational data model and algebra. Moreover, we show that under certain assumptions, all our algebraic operations are tractable. We finally introduce the syntax/semantic of fuzzy temporal relations and describe the calculus of the fuzzy temporal algebra.
Date of Conference: 17-19 October 2009
Date Added to IEEE Xplore: 30 October 2009
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Conference Location: Tianjin, China

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