He was a visiting scholar in the Department of Computer Science and Engineering. Hong Kong Baptist University. including ACM Best PhD Paper Award and Microsoft Imagine Cup. He is also the recipient of many awards. Columbus. He has published more than 70 technical papers in these areas. His research interests include data management. University Park. He currently serves as a vice chairman of ACM Hong Kong Chapter. China. Ohio State University. His research interests include information retrieval. He is currently a professor in the Department of Computer Science and Engineering. His research interests include mobile and wireless data management. location-based services. Hong Kong Baptist University. journals and book chapters. He received the BEng degree in computer science and engineering from Zhejiang University. wireless sensor networks.