TY - GEN
T1 - Supporting multiple user types with a multimodal dialog agent
AU - Groble, Michael
AU - Thompson, Will
PY - 2007
Y1 - 2007
N2 - Recent research has addressed the problem of formulating a dialog agent as a partially observable Markov decision process (POMDP), and learning a dialog policy that is optimal given the particular characteristics of the transition, observation and reward functions of the POMDP. This paper addresses the problem of trying to learn a small set of dialog agent policies that provide near-optimal behavior over a wide range of variations in POMDPs, reflecting different user preferences and environment characteristics. We show for a very simple dialog, we can cover a large number of simulated users to within 10% of their optimal return using fewer than 5% of the individual optimal policies.
AB - Recent research has addressed the problem of formulating a dialog agent as a partially observable Markov decision process (POMDP), and learning a dialog policy that is optimal given the particular characteristics of the transition, observation and reward functions of the POMDP. This paper addresses the problem of trying to learn a small set of dialog agent policies that provide near-optimal behavior over a wide range of variations in POMDPs, reflecting different user preferences and environment characteristics. We show for a very simple dialog, we can cover a large number of simulated users to within 10% of their optimal return using fewer than 5% of the individual optimal policies.
UR - http://www.scopus.com/inward/record.url?scp=48149106380&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=48149106380&partnerID=8YFLogxK
U2 - 10.1109/WIIATW.2007.4427600
DO - 10.1109/WIIATW.2007.4427600
M3 - Conference contribution
AN - SCOPUS:48149106380
SN - 0769530281
SN - 9780769530284
T3 - Proceedings - 2007 IEEE/WIC/ACM International Conference on Web Intelligence and Intelligent Agent Technology - Workshops, WI-IAT Workshops 2007
SP - 329
EP - 332
BT - Proceedings - 2007 IEEE/WIC/ACM International Conference on Web Intelligence and Intelligent Agent Technology - Workshops, WI-IAT Workshops 2007
T2 - 2007 IEEE/WIC/ACM International Conference on Web Intelligence and Intelligent Agent Technology - Workshops, WI-IAT Workshops 2007
Y2 - 2 November 2007 through 5 November 2007
ER -