Research interests: multimedia database, distributed (grid and P2P) computing, etc. In the international conference on distributed computing systems (ICDCS'08), ACM transactions on Asian language information processing, journal of computer science and technology, China Science (e Series: Information Science) and Journal of Software published more than 20 papers at international conferences, among which 12 papers were included in the three major search. Three national utility model patents were applied for and approved.