|Title||Different models of fuzzy logic programming with fuzzy unification (towards a revision of fuzzy databases)|
|Publication Type||Conference Paper|
|Year of Publication||2001|
|Authors||Vojtás P, Alsinet T, Godo L|
|Conference Name||Joint 9th IFSA World Congress and 20th NAFIPS International Conference|
The aim of this paper is to show relationships between different formalism for handling uncertainty in logic programming, knowledge based systems and deductive databases. Namely we show that our model of fuzzy logic programming has same expressive power as annotated logic programs with restricted continuous semantics. Features of fuzzy unification are achieved by extending the rule base by axioms of equality with fuzzy similarities. This induces a new fuzzy relational algebra. Our procedural semantics enables to estimate truth values of the answers during the computation. Using this we introduce a model with threshold computation and another for finding the best answer with prescribed precision tolerance.
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