@InProceedings{novick-sutton:1994:ACL, author = {David G. Novick and Stephen Sutton}, title = {AN EMPIRICAL MODEL OF ACKNOWLEDGMENT FOR SPOKEN-LANGUAGE SYSTEMS}, booktitle = {Proceedings of the 32nd Annual Meeting of the Association for Computational Linguistics}, month = {June}, year = {1994}, address = {Las Cruces, New Mexico, USA}, publisher = {Association for Computational Linguistics}, pages = {96--101}, url = {http://www.aclweb.org/anthology/P94-1014}, doi = {10.3115/981732.981746} }