Paper: Setting Up User Action Probabilities in User Simulations for Dialog System Development

ACL ID P09-1100
Title Setting Up User Action Probabilities in User Simulations for Dialog System Development
Venue Annual Meeting of the Association of Computational Linguistics
Session Main Conference
Year 2009
Authors

User simulations are shown to be useful in spoken dialog system development. Since most current user simulations deploy prob- ability models to mimic human user be- haviors, how to set up user action proba- bilities in these models is a key problem to solve. One generally used approach is to estimate these probabilities from human user data. However, when building a new dialog system, usually no data or only a small amount of data is available. In this study, we compare estimating user proba- bilities from a small user data set versus handcrafting the probabilities. We discuss the pros and cons of both solutions for dif- ferent dialog system development tasks.