Liang, Y., Meng, F., Zhang, Y., Chen, Y., Xu, J., & Zhou, J. (2021). Infusing Multi-Source Knowledge with Heterogeneous Graph Neural Network for Emotional Conversation Generation. Proceedings of the AAAI Conference on Artificial Intelligence, 35(15), 13343-13352. https://doi.org/10.1609/aaai.v35i15.17575