@InProceedings{ultes-minker:2014:W14-43,
  author    = {Ultes, Stefan  and  Minker, Wolfgang},
  title     = {Interaction Quality Estimation in Spoken Dialogue Systems Using Hybrid-HMMs},
  booktitle = {Proceedings of the 15th Annual Meeting of the Special Interest Group on Discourse and Dialogue (SIGDIAL)},
  month     = {June},
  year      = {2014},
  address   = {Philadelphia, PA, U.S.A.},
  publisher = {Association for Computational Linguistics},
  pages     = {208--217},
  url       = {http://www.aclweb.org/anthology/W14-4328}
}