Finding Friends and Flipping Frenemies: Automatic Paraphrase Dataset Augmentation Using Graph Theory Hannah Chen author Yangfeng Ji author David Evans author 2020-11 text Findings of the Association for Computational Linguistics: EMNLP 2020 Trevor Cohn editor Yulan He editor Yang Liu editor Association for Computational Linguistics Online conference publication chen-etal-2020-finding 10.18653/v1/2020.findings-emnlp.426 https://aclanthology.org/2020.findings-emnlp.426/ 2020-11 4741 4751