I am a professor in the Department of Computer Science at Columbia University. I received my PhD in Computer Science from the University of Pennsylvania, after previously doing teaching (at Smith College) and research in sixteenth-century Mexican social history (PhD from the University of Michigan). I worked at Bell Laboratories and AT&T Laboratories -- Research from 1985-2003 as a Member of Technical Staff and a Department Head. I was an editor-in-chief of Speech Communication from 2003-2006 and editor-in-chief of Computational Linguistics, the journal of the Association for Computational Linguistics, from 1993-2003. I was also on the Executive Board of ACL. I have been a fellow of the American Association for Artificial Intelligence since 1994. I serve on the Permanent Council for the Organisation of International Conferences on Spoken Language Processing (ICSLP) and served as president of the International Speech Communication Association (ISCA) from 2005-2007. My cv is available here.
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