Data Access Techniques for Location-Based Services
Jianliang Xu (Hong Kong Baptist University)
Baihua Zheng (Singapore Management University)
Wang-Chien Lee (Pennsylvania State University)
Location based service (LBS) is emerging as a killer application in mobile data services thanks to the rapid development in wireless communication and location positioning technologies. Users with location-aware wireless devices can query about their surroundings (e.g., finding the nearest Japanese restaurant or all shopping malls within 5 miles) at any place, anytime. While this ubiquitous computing paradigm brings great convenience for information access, the constraints of mobile environments, the spatial property of location-dependent data, and the mobility of mobile users pose a great challenge for the provision of location-based services to mobile users. This seminar will provide an overview of research issues arising from accessing of location-based services in a mobile computing environment and discuss the state-of-the-art solutions. In particular, it will focus the discussions on the following topic areas: 1) location positioning techn!
ologies; 2) query processing; 3) cache management; and 4) privacy and security.
Jianliang Xu is an Assistant Professor in the Department of Computer Science at Hong Kong Baptist University. He received his BEng degree in computer science and engineering from Zhejiang University, Hangzhou, China, in 1998, and his PhD degree in computer science from Hong Kong University of Science and Technology in 2002. His research interests include mobile and pervasive computing, wireless sensor networks, and distributed systems, with an emphasis on data management. He has published over 40 technical papers in these areas, many in prestigious journals and conferences, including SIGMOD, MobiSys, ICDE, EDBT, INFOCOM, TKDE, and VLDBJ. He has served as a session chair and program committee member for many international conferences, including IEEE INFOCOM and MDM. He is currently a program committee co-chair of International Workshop on Peer-to-Peer Information Management (P2PIM'06). For more information, please visit http://www.comp.hkbu.edu.hk/~xujl.
Baihua Zheng received the BEng degree in computer science and engineering from Zhejiang University in 1999, and the PhD degree in computer science from Hong Kong University of Science and Technology in 2003. She is an assistant professor in the School of Information Systems at Singapore Management University. Her research interests include mobile/pervasive computing, spatial database, and data privacy. She has served as TPC members for several international conferences including IEEE ICDE 2007, DASFAA 2006, WISE 2006, and ACM SAC 2006. She is a member of ACM and IEEE. For more information, please visit http://www.mysmu.edu/faculty/bhzheng/.
Wang-Chien Lee is an Associate Professor of Computer Science and Engineering at Pennsylvania State University. He received his B.S. from the Information Science Department, National Chiao Tung University, Taiwan, his M.S. from the Computer Science Department, Indiana University, and his Ph.D. from the Computer and Information Science Department, the Ohio State University. Prior to joining Penn State, he was a principal member of the technical staff at Verizon/GTE Laboratories, Inc. Dr. Lee performs cross-area research in database systems, pervasive/mobile computing, and networking. He is particularly interested in developing data management techniques (including accessing, indexing, caching, aggregation, dissemination, and query processing) for supporting complex queries in a wide spectrum of networking and mobile environments such as peer-to-peer networks, mobile ad-hoc networks, wireless sensor networks, and wireless broadcast systems. Dr. Le!
e is very active in various academic and industrial activities. He has taught several tutorials in top database and mobile computing conferences (e.g., ICDE and MobiCom). He has served as a guest editor for several journal special issues on mobile database-related topics, including IEEE Transaction on Computer, IEEE Personal Communications Magazine, ACM MONET, and ACM WINET. He was the founding program committee co-chair for the International Conference on Mobile Data Management. He is a member of the IEEE and the Association for Computer Machinery. For more information, please visit http://www.cse.psu.edu/~wlee.