1. National University of Computer and Emerging Sciences, Islamabad 44000 Pakistan.
2. National University of Modern Languages, Islamabad 44000 Pakistan.
3. Department of Mathematics and Computer Science, Brandon University, Brandon, MB R7A 6A9 Canada, and also with the Research Center for Interneural Computing, China Medical University, Taichung, 404 Taiwan.
4. Department of Computer Science, Electrical Engineering, and Mathematical Sciences, Western Norway University of Applied Sciences 5063, Bergen Norway.