RavenCalendar: A Multimodal Dialog System for Managing a Personal Calendar Svetlana Stenchikova author Basia Mucha author Sarah Hoffman author Amanda Stent author 2007-04 text Proceedings of Human Language Technologies: The Annual Conference of the North American Chapter of the Association for Computational Linguistics (NAACL-HLT) Bob Carpenter editor Amanda Stent editor Jason D Williams editor Association for Computational Linguistics Rochester, New York, USA conference publication stenchikova-etal-2007-ravencalendar https://aclanthology.org/N07-4008/ 2007-04 15 16