Iterative Paraphrastic Augmentation with Discriminative Span Alignment Ryan Culkin author J Edward Hu author Elias Stengel-Eskin author Guanghui Qin author Benjamin Van Durme author 2021 text journal article Transactions of the Association for Computational Linguistics continuing MIT Press Cambridge, MA periodical academic journal culkin-etal-2021-iterative 10.1162/tacl_a_00380 https://aclanthology.org/2021.tacl-1.30/ 2021 9 494 509