With the advancement of internet and web technologies, there is an increasing interest in the development of intelligent systems [92]. One of the major components of the intelligent systems is the fuzzy logic, which has generated huge interest in a variety of applications. During the last several decades, there have been a number of offshoots of fuzzy logic, and these are applied in all major disciplines of engineering and science. The development of neural network [73] and neuro-fuzzy logic [93] contributed significantly to the design of a large number of real-life applications. During the last few years, the hierarchical fuzzy logic [72][76][78][79] has come out as one of the major contributors in this venture. Hierarchical fuzzy logic is...