My work at Microsoft has been focused on topics at the intersection of information retrieval, natural language processing and machine learning. I work in the Text Mining, Search and Navigation group, which is part of the Internet Services Research Center in Microsoft Research.

I joined Microsoft and MSN Search as a Researcher in 1998, and came up with several innovative search features (that were deployed in MSN Search) as well as editorial tools. After some years in the Natural and Interactive Services Division and the Natural Language Group, I worked in a small incubation group in Microsoft Research, and more recently I spent some time working in Microsoft Research Asia as an Applied  Scientist.

I got my PhD in Computer Science from the Tata Institute of Fundamental Research (TIFR). I worked at TIFR and at the National Center for Software Technology (NCST), Bombay till 1995, with a brief visiting stint at the Center for Machine Translation at Carnegie Mellon University, Pittsburgh. I helped create the Knowledge Based Computer Systems group at NSCT and was a founding editor of Vivek, A Quarterly in Artificial Intelligence. From 1995 to 1998, I worked at the Institute for Research in Cognitive Science at the University of Pennsylvania, Philadelphia, mainly on using computational linguistics to improve information retrieval.

I am the Editor of SIG-IRList, a moderated newsletter from the ACM Special Interest Group on Information Retrieval. I maintain a blog, which is currently IRList-centric.

Here's a list of select publications of mine.