Proceedings of the 15th Annual Meeting of the Special Interest Group on Discourse and Dialogue (SIGDIAL) Kallirroi Georgila editor Matthew Stone editor Helen Hastie editor Ani Nenkova editor 2014-06 Association for Computational Linguistics Philadelphia, PA, U.S.A. text conference publication ws-2014-special 10.18653/v1/W14-4300 https://aclanthology.org/W14-4300/