Journal of Computer Science and Technology (JCST) is the only English journal of China Computer Federation (CCF). The Editor-in-Chief of JCST is Prof. Li Guojie, academician of Chinese Academy of Engineering. JCST is indexed in almost all the relative authoritative indexing systems, including SCIE, EI, SA, DBLP, Computing Reviews, Computer Abstracts, Mathematics Reviews, etc. Since 2005, JCST is distributed worldwide by Springer. With a worldwide readership and authors from every continent, JCST is a truly international journal. The scope of JCST covers all the aspects concerning computer science and technology. As the Chinese computing research and development widens and deepens, it becomes increasingly important for world computer community to follow these developments. JCST is widely recognized as an important outlet for the publication of these research results.