Degrees
- Massachusetts Institute of Technology, Ph.D., 1981
- University of Arizona, B.A., 1976
Professional Experience
- 2015-present: Professor Emeritus, UCLA; Principal Research Scientist, Nuance
- 1989-2015: Professor of Linguistics, UCLA
- 2012,2008,2004,2003: Lecturer, École d'Automne de Linguistique (EALING), École Normale Supérieure, Paris
- 2009,2002,1997,1995: Lecturer, European Summer School in Logic Language and Information
- 2006,2005,2004: Visiting scholar, Program for Evolutionary Dynamics, Harvard University
- 2005,1993: Lecturer, LSA Institute (MIT/Harvard,Ohio State)
- 2003,2002: Lecturer, North American Summer School in Logic Language and Information, (Indiana,Stanford)
- 1990-2001: Consultant, Intelligent Text Processing, Santa Monica, California
- 1999: Lecturer, Fall school in Syntax and Semantics, NTNU, Trondheim
- 1998,1996: Lecturer, Netherlands graduate school of Linguistics (LOT), Utrecht
- 1996: Guest Professor, Institut für Linguistik, Universität Potsdam
- 1986-1990: Consultant, IBM Los Angeles Scientific Center
- 1984-1989: Asst. Professor of Computer Science, University of Western Ontario
- 1986-1987: Software Engineer, Quintus Computer Systems
- 1985: Information Processing Services, IBM
- 1984: Visiting Research Scientist, Educational Testing Service
- 1984: Visiting Assistant Professor of Philosophy, UCLA
- 1981-1983: Postdoctoral Fellow in Cognitive Science, University of Western Ontario