Dealing with uncertainty and hesitation in real life is always a challenging task, and different tools have been proposed in the literature to deal with it. In 1965, Zadeh gave the notion of fuzzy sets in his seminal paper. The study of fuzzy sets has advanced in the past 40 years in a variety of ways and in many disciplines. Fuzzy sets and systems have been widely applied to logic, economics, medicine, artificial intelligence, management science, computer science, control engineering, decision theory, operations research, pattern recognition, and robotics.

Recently, further extensions of fuzzy sets have also been introduced to deal with more complex situations.

In this special issue, we intend to consider the recent advances in theory and the related topics with real world applications. Potential topics include, but are not limited to:

* Fuzzy control system
* Decision making methods and techniques using fuzzy sets
* Similarity/information measures
* Soft computing
* Fuzzy TOPSIS
* Fuzzy preference relations
* Fuzzy relational clustering algorithm
* Integrals like Choquet and Sugeno Integral
* Applications in real world problems

Before submission authors should carefully read over the journal’s Author Guidelines, which are located at http://www.hindawi.com/journals/aaa/guidelines/. Prospective authors should submit an electronic copy of their complete manuscript through the journal Manuscript Tracking System at http://mts..hindawi.com/submit/journals/aaa/fuma/ according to the following timetable:

Manuscript Due Friday, 23 January 2015
First Round of Reviews Friday, 17 April 2015 Publication Date Friday, 12 June 2015

Lead Guest Editor
Ismat Beg, Centre for Mathematics and Statistical Sciences, Lahore School of Economics, 53200 Lahore, Pakistan

Guest Editors
* Etienne E. Kerre, Department of Applied Mathematics & Computer Science, University of Gent, 9000 Gent, Belgium
* Valentina Emilia Balas, Department of Automatics and Applied Software, Faculty of Engineering, University Aurel Vlaicu, Arad, Romania
* Ding-Hong Peng, Institute of Quality Development, Kunming University of Science and Technology, Kunming, China