activity
20232026
most citedProvably Robust Score-Based Diffusion Posterior Sampling for Plug-and-Play Image Reconstruction

2 citations · 2 across the 5 of their papers we have counts for

collaborators

5 papers

eess.IV2026

Multimodal Diffusion to Mutually Enhance Polarized Light and Low Resolution EBSD Data

Harry Dong, Timofey Efimov, Megna Shah +4

In spite of the utility of 3-D electron back-scattered diffraction (EBSD) microscopy, the data collection process can be time-consuming with serial-sectioning. Hence, it is natural…

cs.LG2026

Polynomial Convergence of Riemannian Diffusion Models

Xingyu Xu, Ziyi Zhang, Yorie Nakahira +2

Diffusion models have demonstrated remarkable empirical success in the recent years and are considered one of the state-of-the-art generative models in modern AI. These models cons…

cs.LG2025

Provably Efficient and Agile Randomized Q-Learning

He Wang, Xingyu Xu, Yuejie Chi

While Bayesian-based exploration often demonstrates superior empirical performance compared to bonus-based methods in model-based reinforcement learning (RL), its theoretical under…

eess.IV2024★ 2 cited

Provably Robust Score-Based Diffusion Posterior Sampling for Plug-and-Play Image Reconstruction

Xingyu Xu, Yuejie Chi

In a great number of tasks in science and engineering, the goal is to infer an unknown image from a small number of measurements collected from a known forward model describing cer…

cs.LG2023

Provably Accelerating Ill-Conditioned Low-rank Estimation via Scaled Gradient Descent, Even with Overparameterization

Cong Ma, Xingyu Xu, Tian Tong +1

Many problems encountered in science and engineering can be formulated as estimating a low-rank object (e.g., matrices and tensors) from incomplete, and possibly corrupted, linear…