School of Electronics and Information Engineering, Tongji University, Shanghai 201804, China, Center for Bioinformatics and Systems Biology, Department of Radiology, Wake Forest School of Medicine, Winston-Salem, NC 27157, USA, LERIA, University of Angers, 49045 Angers Cedex 01, France, Department of Mathematics, Shanghai University, Shanghai 200444, China and Key Laboratory of Systems Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China School of Electronics and Information Engineering, Tongji University, Shanghai 201804, China, Center for Bioinformatics and Systems Biology, Department of Radiology, Wake Forest School of Medicine, Winston-Salem, NC 27157, USA, LERIA, University of Angers, 49045 Angers Cedex 01, France, Department of Mathematics, Shanghai University, Shanghai 200444, China and Key Laboratory of Systems Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China.