Journal of Computer Science and Technology JCST is an international forum for scientists and engineers involved in all aspects of computer science and technology to publish high quality, refereed papers. It is an international research journal sponsored by Institute of Computing Technology ICT , Chinese Academy of Sciences CAS , and China Computer Federation CCF. The journal is jointly published by Science Press of China and Springer on a bimonthly basis in English. The journal offers survey and review articles from experts in the field, promoting insight and understanding of the state of the art, and trends in technology. The contents include original research and innovative applications from all parts of the world. While the journal presents mostly previously unpublished materials, selected conference papers with exceptional merit are also published, at the discretion of the editors. Coverage includes computer architecture and systems, artificial intelligence and pattern recognition, computer networks and distributed computing, computer graphics and multimedia, software systems, data management and data mining, theory and algorithms, emerging areas, and more. Knuth Stanford University, Palo Alto Chung-Laung Dave Liu Tsinghua University, Hsinchu Andrew C. Pan The University of Texas at Austin, Austin Weisong Shi Wayne State University, Detroit Ning-Hui Sun ICT, CAS, Beijing Xian-He Sun Illinois Institute of Technology, Chicago Xiaoqing Wen Kyushu Ins. Wah The Chinese Univ. Hong Kong, Hong Kong Fei-Yue Wang Ins. Automation, CAS, Beijing Jue Wang 1948-2014 Ins. Automation, CAS, Beijing Li-Wei Wang Peking University, Beijing Xin Yao University of Birmingham, Birmingham Chang-Shui Zhang Tsinghua University, Beijing David Zhang Hong Kong Polytechnic University, Hong Kong Zhi-Hua Zhou Nanjing University, Nanjing Xiao-Yan Zhu Tsinghua University, Beijing Cheng-Qing Zong Ins. Automation, CAS, Beijing Computer Graphics and Multimedia Hu-Jun Bao Zhejiang University, Hangzhou Zhan-Yi Hu Ins. Automation, CAS, Beijing Jian Huang University of Tennessee, Knoxville Ji-Wu Huang Shenzhen University, Shenzhen Xue-Long Li OPTIMAL, CAS, Xi'an Qun-Sheng Peng Zhejiang University, Hangzhou Hong Qin State University of New York at Stony Brook, New York Zhengyou Zhang Microsoft Corp. Software, CAS, Beijing Computer Networks and Distributed Computing Jiannong Cao Hong Kong Polytechnic University, Hong Kong Robert H. University, Singapore Min-Yi Guo Shanghai Jiao Tong University, Shanghai Ling Liu Georgia Institute of Technology, Atlanta Yun-Hao Liu Tsinghua University, Beijing Zhi-Yong Liu ICT, CAS, Beijing Yi Mu University of Wollongong, Wollongong Peng Ning North Carolina State University, Raleigh Xuemin Sherman Shen University of Waterloo, Waterloo Ivan Stojmenovic 1957-2014 University of Ottawa, Ottawa Jie Wu Temple University, Philadelphia Zhuo-Qun Xu Peking University, Beijing Zhili Zhang University of Minnesota, Minneapolis Yi-Qing Zhou ICT, CAS, Beijing Theory and Algorithms Xiao-Tie Deng Shanghai Jiao Tong University, Shanghai Xue-Jia Lai Shanghai Jiao Tong University, Shanghai Hui-Min Lin Ins.