We have the following paper for conversational AI or dialog system (more papers are under submission).
Review Conversational Reading Comprehension
Hu Xu, Bing Liu, Lei Shu and Philip S. Yu
Flexibly-Structured Model for Task-Oriented Dialogues
Lei Shu, Piero Molino, Mahdi Namazifar, Bing Liu, Hu Xu, Huaixiu Zheng and Gokhan Tur
Modeling Multi-Action Policy for Task-Oriented Dialogues
2019 Conference on Empirical Methods in Natural Language Processing (EMNLP 2019)
Lei Shu, Hu Xu, Bing Liu and Piero Molino