Since the launch, in 1965, of the key notion of a fuzzy subset by Lotfi A. Zadeh,
this concept has succeeded in growing interest and development. Nowadays, it is undoubtedly one of the most powerful and appealing branches of mathematics. Its range of applications is wide and multidisciplinary, starting from computer sciences and artificial intelligence, but also touching on a vast set of scientific disciplines (physics, engineering, medicine, economics, social choice, etc.).
The present Special Issue is devoted to introducing new trends on this theory, from an interdisciplinary point of view, and looking for a wide coverage of topics related to fuzzy set and systems.
Esteban Indur´ain
Public University of Navarre. Pamplona, Spain
Aggregation operators Copulas Decision making Extensions of fuzzy sets Functional equations Fuzzy logic Fuzzy relations Fuzzy sets General topology Image processing Labels Numerical representability Ordered structures Social choice Type-2 fuzzy sets