Variational Semi-Supervised Aspect-Term Sentiment Analysis via Transformer Xingyi Cheng author Weidi Xu author Taifeng Wang author Wei Chu author Weipeng Huang author Kunlong Chen author Junfeng Hu 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 cheng-etal-2019-variational 10.18653/v1/K19-1090 https://aclanthology.org/K19-1090/ 2019-11 961 969