Accelerated Gradient Algorithms with Adaptive Subspace Search for Instance-Faster Optimization. - Yuanshi Liu; Hanzhen Zhao; Yang Xu 055; Pengyun Yue; Cong Fang 001 (CoRR, 2023)

The Implicit Bias of Heterogeneity towards Invariance: A Study of Multi-Environment Matrix Sensing. - Yang Xu 055; Yihong Gu; Cong Fang 001 (NeurIPS, 2024)

The Implicit Bias of Heterogeneity towards Invariance and Causality. - Yang Xu 055; Yihong Gu; Cong Fang 001 (CoRR, 2024)

Fundamental Computational Limits in Pursuing Invariant Causal Prediction and Invariance-Guided Regularization. - Yihong Gu; Cong Fang 001; Yang Xu 055; Zijian Guo 003; Jianqing Fan (CoRR, 2025)