[Liao, Binhua;Chen, Yani;Wang, Zhewei;Liu, Jundong] Ohio Univ, Sch Elect Engn & Comp Sci, Athens, OH 45701 USA.^[Liao, Binhua] Huazhong Normal Univ, Coll Math & Stat, Wuhan, Peoples R China.^[Smith, Charles D.] Univ Kentucky, Dept Neurol, Lexington, KY USA.