TriS: A Statistical Sentence Simplifier with Log-linear Models and Margin-based Discriminative Training Nguyen Bach author Qin Gao author Stephan Vogel author Alex Waibel author 2011-11 text Proceedings of 5th International Joint Conference on Natural Language Processing Haifeng Wang editor David Yarowsky editor Asian Federation of Natural Language Processing Chiang Mai, Thailand conference publication bach-etal-2011-tris https://aclanthology.org/I11-1053/ 2011-11 474 482