1. Multimedia and Mobile Networking

       For multimedia and mobile networking, the research topics include multicast routing, network coding, resource planning, and cross-layer design with analysis. Research results have spanned various kinds of networks, such as heterogeneous wireless networks, peer-to-peer networks, satellite networks, Internet backbone, and wavelength division multiplexing (WDM) optical networks. Recently, we also developed and implemented a few multimedia streaming and mobile routing applications. The results have appeared in INFOCOM, ICNP, MM, TMC, TMM, TKDE, TPDS, and TVT.

2. Social Networks and Mobile Data Management

       The research topics for social networks include query processing and privacy preserving, from the perspective of graph theory and network optimization. We also proposed a distributed mining framework for sensor networks and considered uncertain query optimization for mobile environments. The results have appeared in VLDB, KDD, CIKM, and TKDE.