Exploiting Debate Portals for Semi-Supervised Argumentation Mining in User-Generated Web Discourse Ivan Habernal author Iryna Gurevych author 2015-09 text Proceedings of the 2015 Conference on Empirical Methods in Natural Language Processing Lluís Màrquez editor Chris Callison-Burch editor Jian Su editor Association for Computational Linguistics Lisbon, Portugal conference publication habernal-gurevych-2015-exploiting 10.18653/v1/D15-1255 https://aclanthology.org/D15-1255/ 2015-09 2127 2137