Interval based Uncertain Reasoning using Fuzzy and Rough Sets
نویسندگان
چکیده
This paper examines two interval based uncertain reasoning methods, one is based on interval fuzzy sets, and the other is based on rough sets. The notion of interval triangular norms is introduced. Basic issues on the use of t-norms for approximate reasoning with interval fuzzy sets are addressed. Inference rules are given for using both numeric intervals and lattice based intervals. The theory of rough sets is used to approximate truth values of propositions and to explore modal structures in many-valued logic. Reasoning based on rough sets is complementary to reasoning based on interval fuzzy sets.
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