I am a technical fellow and managing director of Microsoft Research New England, Microsoft Research New York City and Microsoft Research Montreal. My research is at the intersection of information retrieval and human-computer interaction. I am interested in algorithms and interfaces for improved information retrieval, as well as general issues in human-computer interaction.
I have been at Microsoft Research since July 1997. My current research focuses on gaze-enhanced interaction, the temporal dynamics of information systems, user modeling and personalization, novel interfaces for interactive retrieval, and search evaluation. Previous research studied a variety of information access and management challenges, including personal information management, desktop search, question answering, text categorization, collaborative filtering, interfaces for improving search and navigation, and user/task modeling. I have worked closely with several Microsoft groups (Bing, Windows Desktop Search, SharePoint Portal Server and Office Online Help) on search-related innovations.
Prior to coming to Microsoft, I co-developed a statistical method for concept-based retrieval known as Latent Semantic Indexing. You can find pointers to this work on the Bellcore (now Telcordia) LSI page.