Brown University. Part-of-speech tagging, probabilistic context-free grammar induction, syntactic disambiguation through word statistics, efficient syntactic parsing, and lexical resource acquisition through statistical means.
Opitcal flow, human motion tracking and recognition, robust estimation, and probabilistic inference. Updated publications, source code for motion estimation, and new image sequences.
Pursues research in modeling, rendering, user interfaces and high-performance architectures using scientific visualization and telecollaboration in virtual environments.
Brown University - Influential researcher in Natural Language Processing and Artificial Intelligence. His home page features some of his publications, in postscript.
Brown University - Interaction, compound and active document systems (such as OpenDoc, JavaBeans and ActiveX), object oriented programming, and programming languages.