Intrinsic and Extrinsic Evaluation of an Automatic User Disengagement Detector for an Uncertainty-Adaptive Spoken Dialogue System Kate Forbes-Riley author Diane Litman author Heather Friedberg author Joanna Drummond author 2012-06 text Proceedings of the 2012 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies Eric Fosler-Lussier editor Ellen Riloff editor Srinivas Bangalore editor Association for Computational Linguistics Montréal, Canada conference publication forbes-riley-etal-2012-intrinsic https://aclanthology.org/N12-1010/ 2012-06 91 102