The independence of dimensions in multidimensional dialogue act annotation Volha Petukhova author Harry Bunt author 2009-06 text Proceedings of Human Language Technologies: The 2009 Annual Conference of the North American Chapter of the Association for Computational Linguistics, Companion Volume: Short Papers Mari Ostendorf editor Michael Collins editor Shri Narayanan editor Douglas W Oard editor Lucy Vanderwende editor Association for Computational Linguistics Boulder, Colorado conference publication petukhova-bunt-2009-independence https://aclanthology.org/N09-2050/ 2009-06 197 200