1. Department of Industrial Management and Technology, Texas A&M University-Kingsville, Kingsville, TX, USA
2. Mininglamp Academy of Sciences, Mininglamp Technology, Shanghai, China
3. Department of Engineering Management and Systems Engineering, Missouri University of Science and Technology, Rolla, MO, USA
4. Department of Mathematics and Statics, Missouri University of Science and Technology, Rolla, MO, USA
5. Department of Computer Science, Missouri University of Science and Technology, Rolla, MO, USA