Modeling Semantic Relationship in Multi-turn Conversations with Hierarchical Latent Variables Lei Shen author Yang Feng author Haolan Zhan author 2019-07 text Proceedings of the 57th Annual Meeting of the Association for Computational Linguistics Anna Korhonen editor David Traum editor Lluís Màrquez editor Association for Computational Linguistics Florence, Italy conference publication shen-etal-2019-modeling 10.18653/v1/P19-1549 https://aclanthology.org/P19-1549/ 2019-07 5497 5502