Active Learning via Membership Query Synthesis for Semi-Supervised Sentence Classification Raphael Schumann author Ines Rehbein author 2019-11 text Proceedings of the 23rd Conference on Computational Natural Language Learning (CoNLL) Mohit Bansal editor Aline Villavicencio editor Association for Computational Linguistics Hong Kong, China conference publication schumann-rehbein-2019-active 10.18653/v1/K19-1044 https://aclanthology.org/K19-1044/ 2019-11 472 481