Who determines United States Healthcare out-of-pocket costs? Factor ranking and selection using ensemble learning. - Chengcheng Zhang 001; Yujia Ding; Qidi Peng (Health Inf. Sci. Syst., 2021)

Time-Varying Autoregressive Models: A Novel Approach Using Physics-Informed Neural Networks. - Zhixuan Jia; Chengcheng Zhang 001 (Entropy, 2025)