Contextual Augmentation: Data Augmentation by Words with Paradigmatic Relations Sosuke Kobayashi author 2018-06 text Proceedings of the 2018 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies, Volume 2 (Short Papers) Marilyn Walker editor Heng Ji editor Amanda Stent editor Association for Computational Linguistics New Orleans, Louisiana conference publication kobayashi-2018-contextual 10.18653/v1/N18-2072 https://aclanthology.org/N18-2072/ 2018-06 452 457