Special Issue on selected papers from the IFSA-EUSFLAT2015 conference

The 16th World Congress of the International Fuzzy Systems Association (IFSA) and the 9th Conference of the European Society for Fuzzy Logic and Technology (EUSFLAT) were jointly held from June 30 to July 3 (2015) in Gijón (Spain). The IFSA–EUSFLAT2015 program included 4 plenary talks in addition to a regular track and 28 special sessions. All the latter comprised 232 papers, authored by researchers from 47 countries working on fuzzy logic and related areas.