Department of Computer Science and Engineering, University of Texas at Arlington, 500 UTA Blvd., Arlington, 76019, USA. mingon.kang@mavs.uta.edu.|Department of Bioengineering, University of Texas at Arlington, 500 UTA Blvd., Arlington, 76019, USA. ltang@uta.edu.|Department of Computer Science and Engineering, University of Texas at Arlington, 500 UTA Blvd., Arlington, 76019, USA. gao@uta.edu.