1、PrefaceIn 1975,Professor Lotif A.Zadeh introduced type-2 fuzzy sets(T2 FSs).In recentyears T2 FSs have become one of the research hot spots for data analysis and artificialintelligence,since they can provide more freedom to describe the membership information,and hence can address the problem of lin
2、guistic ambiguity and data noise better thanconventional fuzzy sets.Since 2007,Professor Fei-Yue Wang and his team have worked on T2 FS and theirlogic,building their theoretical foundation and finding various applications.A series ofnew ideas,new concepts and new methods for T2 FSs are developed thr
3、ough their efforts,from conceptual definitions,formal representations,intuitive descriptions to many relatedanalyses.Practical implementations are provided of T2 FSs in modeling,control,management,and evaluation of complex systems.I believe Prof.Wangs monograph provides a superb state-of-the-art fou
4、ndation forT2 FSs.I highly recommend this excellent book to every student and researcher who isinterested in fuzzy sets,and particularly in using T2 FSs in new and exciting researchareas,both theoretical and practical.45LProf.Jonathan M.GaribaldiEditor-in-Chief IEEE Transactions on Fuzzy SystemsHead for the School of Computor Science,University of Nottingham
