[1] Beijing Univ Chem Technol, Coll Informat Sci & Technol, Beijing, Peoples R China
[2] Minist Educ China, Engn Res Ctr Intelligent PSE, Beijing, Peoples R China
[3] Dalarna Univ, Dept Energy & Construct Engn, Falun, Sweden
[4] Univ N Carolina, Dept Comp Sci, Charlotte, NC USA