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Linguistic modifiers and imprecise categories
Author(s) -
BouchonMeunier Bernadette,
Jia Yao
Publication year - 1992
Publication title -
international journal of intelligent systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.291
H-Index - 87
eISSN - 1098-111X
pISSN - 0884-8173
DOI - 10.1002/int.4550070105
Subject(s) - fuzzy logic , focus (optics) , context (archaeology) , artificial intelligence , computer science , representation (politics) , simple (philosophy) , knowledge representation and reasoning , natural language processing , mathematics , epistemology , paleontology , philosophy , physics , politics , law , political science , optics , biology
We study knowledge‐based systems using fuzzy logic and we focus on the representation of knowledge through linguistic variables characterized by means of fuzzy qualifications or labels. We study a new form of linguistic modifier which slightly changes the qualifications through either a weakening or a reinforcement. This modifier is an important tool for approximate reasoning for two reasons: its use is equivalent to a simple rule given in a symbolic way, avoiding computations and compatible with the fuzzy logic; it enables gradual rules to be used in the context of deduction rules and corresponds to the idea of gradual changing of category.