This research spans several disciplines, including document image understanding, artificial intelligence, Internet technologies, multimedia, information retrieval, and database systems.
Information retrieval is done through a World Wide Web interface.
He received M.S. and Ph.D. degrees in Computer Science from the State University of New York at Buffalo in 1985 and 1994 respectively. His Ph.D. dissertation addressed the use of knowledge-based techniques to derive the logical structure of documents. W. Lam and D. Niyogi, Block Segmentation of Document Images Using the X-Y Tree Approach , Technical Report No.