The classical view of concepts in psychology was challenged in the 1970s                  when experimental evidence showed that concept categories are graded and thus cannot                  be represented adequately by classical sets. The possibility of using fuzzy set                  theory and fuzzy logic for representing and dealing with concepts was recognized                  initially but then virtually abandoned in the early 1980s. In this volume, leading                  researchers--both psychologists working on concepts and mathematicians working on                  fuzzy logic--reassess the usefulness of fuzzy logic for the psychology of concepts.                  The book begins with two tutorials--one on concepts and the other on fuzzy                  logic--aimed at making relevant experimental and theoretical issues accessible to                  researchers in both fields. The contributors then discuss the experiments that led                  to the rejection of the classical view of concepts; analyze the various arguments                  against the use of fuzzy logic in the psychology of concepts and show that they are                  fallacious; review methods based on sound measurement principles for constructing                  fuzzy sets; introduce formal concept analysis and its capabilities when generalized                  by using fuzzy logic; consider conceptual combinations; examine lexical concepts;                  and propose a research program based on cooperation between researchers in the                  psychology of concepts and fuzzy logic.

Concepts and Fuzzy Logic PDF

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