PPDB 2.0: Better paraphrase ranking, fine-grained entailment relations, word embeddings, and style classification Ellie Pavlick author Pushpendre Rastogi author Juri Ganitkevitch author Benjamin Van Durme author Chris Callison-Burch author 2015-07 text Proceedings of the 53rd Annual Meeting of the Association for Computational Linguistics and the 7th International Joint Conference on Natural Language Processing (Volume 2: Short Papers) Chengqing Zong editor Michael Strube editor Association for Computational Linguistics Beijing, China conference publication pavlick-etal-2015-ppdb 10.3115/v1/P15-2070 https://aclanthology.org/P15-2070/ 2015-07 425 430