VAE-PGN based Abstractive Model in Multi-stage Architecture for Text Summarization Hyungtak Choi author Lohith Ravuru author Tomasz Dryjański author Sunghan Rye author Donghyun Lee author Hojung Lee author Inchul Hwang author 2019-oct–nov text Proceedings of the 12th International Conference on Natural Language Generation Kees van Deemter editor Chenghua Lin editor Hiroya Takamura editor Association for Computational Linguistics Tokyo, Japan conference publication choi-etal-2019-vae 10.18653/v1/W19-8664 https://aclanthology.org/W19-8664/ 2019-oct–nov 510 515