@inproceedings{statisticalusersimulationforspoken,
  title = {Statistical User Simulation for Spoken Dialogue Systems: What for, Which Data, Which Future?},
  author = {Olivier Pietquin},
  year = {2012},
  booktitle = {WS 2012 6},
  url = {https://aclanthology.org/W12-1805},
}