Cheriton School of Computer Sicence at the University of Waterloo in Waterloo, Canada. He received the Ph.D. in Computer Science (2005) from the University of Toronto in Toronto, Canada, the M.Sc. in Computer Science (2000) from the University of British Columbia in Vancouver, Canada, and the B.Sc. in Mathematics and Computer Science (1998) from McGill University in Montreal, Canada. His research focuses on the development of decision-theoretic planning and machine learning teachniques for autonomous and adaptive systems in various domains, including assistive technologies for elder care, spoken dialog systems, natural language processing and preference elicitation. He recently served on the program committee of several international conferences, including IJCAI, AAAI, UAI, ICML, AAMAS, EMNLP and co-organized the AAAI-06 workshop on Empirical and Statistical Methods for Spoken Dialogue Systems.