Li, Yangyang, Lin Kong, Fanhua Shang, Yuanyuan Liu, Hongying Liu, and Zhouchen Lin. “Learned Extragradient ISTA With Interpretable Residual Structures for Sparse Coding”. Proceedings of the AAAI Conference on Artificial Intelligence 35, no. 10 (May 18, 2021): 8501-8509. Accessed January 26, 2022. https://ojs.aaai.org/index.php/AAAI/article/view/17032.