His research interests include multimedia and web data management. His current research projects include quality adaptive data processing and indexing for sensory data, distributed data management and Internet technologies for efficient dynamic content delivery, and adaptive information management for creating technologies helping blind individuals. His research projects are funded by the National Science Foundation, Department of Defense, and Department of Education (Rehabilitation Services Administration). He has published more than 80 articles in respected journals and conferences in related areas. He served in the organization and program committees of various international conferences. Most recently, he is an editorial board member of the Very Large Databases (VLDB) journal and the Journal of Multimedia.
