Title
An unsupervised approach to user simulation: toward self-improving dialog systems
Abstract
This paper proposes an unsupervised approach to user simulation in order to automatically furnish updates and assessments of a deployed spoken dialog system. The proposed method adopts a dynamic Bayesian network to infer the unobservable true user action from which the parameters of other components are naturally derived. To verify the quality of the simulation, the proposed method was applied to the Let's Go domain (Raux et al., 2005) and a set of measures was used to analyze the simulated data at several levels. The results showed a very close correspondence between the real and simulated data, implying that it is possible to create a realistic user simulator that does not necessitate human intervention.
Year
Venue
Keywords
2012
SIGDIAL Conference
realistic user simulator,dialog system,close correspondence,unobservable true user action,simulated data,user simulation,necessitate human intervention,dynamic bayesian network,unsupervised approach
Field
DocType
Citations 
Dialog box,Spoken dialog,Computer science,Artificial intelligence,Unobservable,Machine learning,Dynamic Bayesian network
Conference
6
PageRank 
References 
Authors
0.52
12
2
Name
Order
Citations
PageRank
Sungjin Lee122127.44
Maxine Eskenazi2979127.53