Luo, B., Zhu, J., Yang, T., Zhao, S., Hu, C., Zhao, X. and Gao, Y. (2023) “Learning Deep Hierarchical Features with Spatial Regularization for One-Class Facial Expression Recognition”, Proceedings of the AAAI Conference on Artificial Intelligence, 37(5), pp. 6065-6073. doi: 10.1609/aaai.v37i5.25749.