Collecting Highly Parallel Data for Paraphrase Evaluation David Chen author William Dolan author 2011-06 text Proceedings of the 49th Annual Meeting of the Association for Computational Linguistics: Human Language Technologies Dekang Lin editor Yuji Matsumoto editor Rada Mihalcea editor Association for Computational Linguistics Portland, Oregon, USA conference publication chen-dolan-2011-collecting https://aclanthology.org/P11-1020/ 2011-06 190 200