Chen, L., B. Lv, C. Wang, S. Zhu, B. Tan, and K. Yu. “Schema-Guided Multi-Domain Dialogue State Tracking With Graph Attention Neural Networks”. Proceedings of the AAAI Conference on Artificial Intelligence, vol. 34, no. 05, Apr. 2020, pp. 7521-8, doi:10.1609/aaai.v34i05.6250.