Variational Hierarchical Dialog Autoencoder for Dialog State Tracking Data Augmentation Kang Min Yoo author Hanbit Lee author Franck Dernoncourt author Trung Bui author Walter Chang author Sang-goo Lee author 2020-11 text Proceedings of the 2020 Conference on Empirical Methods in Natural Language Processing (EMNLP) Bonnie Webber editor Trevor Cohn editor Yulan He editor Yang Liu editor Association for Computational Linguistics Online conference publication yoo-etal-2020-variational 10.18653/v1/2020.emnlp-main.274 https://aclanthology.org/2020.emnlp-main.274/ 2020-11 3406 3425