Stance Classification of Ideological Debates: Data, Models, Features, and Constraints Kazi Saidul Hasan author Vincent Ng author 2013-10 text Proceedings of the Sixth International Joint Conference on Natural Language Processing Ruslan Mitkov editor Jong C Park editor Asian Federation of Natural Language Processing Nagoya, Japan conference publication hasan-ng-2013-stance https://aclanthology.org/I13-1191/ 2013-10 1348 1356