Nicole Novielli, Carlo Strapparava. Towards Unsupervised Recognition of Dialogue Acts. In Anoop Sarkar, Carolyn Penstein Rosé, Svetlana Stoyanchev, Ulrich Germann, Chirag Shah, editors, Human Language Technologies: Conference of the North American Chapter of the Association of Computational Linguistics, Proceedings, May 31 - June 5, 2009, Boulder, Colorado, USA, Student Research Workshop and Doctoral Consortium. pages 84-89, The Association for Computational Linguistics, 2009. [doi]