@conference {15984, title = {Mixed initiative dialogue and intelligence via active logic}, booktitle = {proceedings of the AAAI99 Workshop on Mixed-Initiative Intelligence}, year = {1999}, month = {1999///}, pages = {60 - 67}, author = {Andersen,C. and Traum,D. and Purang,K. and Purushothaman,D. and Perlis, Don} }