We propose a novel model to simulate user knowledge consistency in tutoring dialogs, where no clear user goal can be defined. We also propose a new evaluation measure of knowledge consistency based on learning curves. We compare our new simulation model to real users as well as to a previously used simulation model. We show that the new model performs similarly to the real students and to the previous model when evaluated on high-level dialog features. The new model outperforms the previous model when measured on knowledge consistency.
Cite as: Ai, H., Litman, D.J. (2007) Knowledge consistent user simulations for dialog systems. Proc. Interspeech 2007, 2697-2700, doi: 10.21437/Interspeech.2007-708
@inproceedings{ai07b_interspeech,
author={Hua Ai and Diane J. Litman},
title={{Knowledge consistent user simulations for dialog systems}},
year=2007,
booktitle={Proc. Interspeech 2007},
pages={2697--2700},
doi={10.21437/Interspeech.2007-708}
}