Ghazarian, S., Weischedel, R., Galstyan, A. and Peng, N. 2020. Predictive Engagement: An Efficient Metric for Automatic Evaluation of Open-Domain Dialogue Systems. Proceedings of the AAAI Conference on Artificial Intelligence. 34, 05 (Apr. 2020), 7789-7796. DOI:https://doi.org/10.1609/aaai.v34i05.6283.