Zhong, Li, Zhen Fang, Feng Liu, Jie Lu, Bo Yuan, and Guangquan Zhang. 2021. “How Does the Combined Risk Affect the Performance of Unsupervised Domain Adaptation Approaches?”. Proceedings of the AAAI Conference on Artificial Intelligence 35 (12):11079-87. https://doi.org/10.1609/aaai.v35i12.17322.