collaborators

5 papers

cs.CE2026

Graphical conditional generative modeling for digital twin modeling

Zongren Zou, Théo Bourdais, Ricardo Baptista +1

Digital twin modeling, including control and data assimilation under model uncertainty, often faces an open-ended fidelity problem: adding variables, data streams, and time scales…

cs.LG2026

Blade: A Derivative-free Bayesian Inversion Method using Diffusion Priors

Hongkai Zheng, Austin Wang, Zihui Wu +3

Derivative-free Bayesian inversion arises in science and engineering applications, particularly when forward model is costly or infeasible to differentiate through. Existing deriva…

math.NA2026

Energy-based Transport for Amortized Bayesian Inference

Hojjat Kaveh, Ricardo Baptista, Andrew M. Stuart

We consider amortized Bayesian inference for nonlinear inverse problems using only samples from the joint distribution of parameters and observations, including problems with unkno…

cs.CV2026

Variational Flow Maps: Make Some Noise for One-Step Conditional Generation

Abbas Mammadov, So Takao, Bohan Chen +4

Flow maps enable high-quality image generation in a single forward pass. However, unlike iterative diffusion models, their lack of an explicit sampling trajectory impedes incorpora…

cs.LG2025

Ensemble Kalman Diffusion Guidance: A Derivative-free Method for Inverse Problems

Hongkai Zheng, Wenda Chu, Austin Wang +3

When solving inverse problems, one increasingly popular approach is to use pre-trained diffusion models as plug-and-play priors. This framework can accommodate different forward mo…