1 Department of Industrial and Systems Engineering, University of Washington, Seattle, WA 98195 USA.
2 Department of Computer Science and Engineering, Michigan State University, East Lansing, MI 48824 USA.
3 Department of Computer Science and Engineering, Texas A&M University, College Station, TX 77843 USA.
4 Department of Automation, University of Science and Technology of China, Hefei, Anhui 230026 China.
5 Department of Electrical and Computer Engineering and TEES-AgriLife Center for Bioinformatics and Genomic Systems Engineering, Texas A&M University, College Station, TX 77843 USA.