A Graphical User Interface for Feature-Based Opinion Mining Pedro Paulo Balage Filho author Caroline Brun author Gilbert Rondeau author 2012-06 text Proceedings of the Demonstration Session at the Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies Aria Haghighi editor Yaser Al-Onaizan editor Association for Computational Linguistics Montréal, Canada conference publication balage-filho-etal-2012-graphical https://aclanthology.org/N12-3002/ 2012-06 5 8