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Shirin Shoushtari

7 accepted papers

2026

EigenScore: OOD Detection using Posterior Covariance in Diffusion Models

ICLR 2026poster

Out-of-distribution (OOD) detection is critical for the safe deployment of machine learning systems in safety-sensitive domains. Diffusion models have recently emerged as powerful generative models, capable of capturing complex data distributions through iterative denoising. Building on this progres…

Cited by 6SourceScholar
2024

Prior Mismatch and Adaptation in PnP-ADMM with a Nonconvex Convergence Analysis

ICML 2024poster

Plug-and-Play (PnP) priors is a widely-used family of methods for solving imaging inverse problems by integrating physical measurement models with image priors specified using image denoisers. PnP methods have been shown to achieve state-of-the-art performance when the prior is obtained using powerf…

Cited by 6SourcePDFScholar
2023

Block Coordinate Plug-and-Play Methods for Blind Inverse Problems

NeurIPS 2023poster

Plug-and-play (PnP) prior is a well-known class of methods for solving imaging inverse problems by computing fixed-points of operators combining physical measurement models and learned image denoisers. While PnP methods have been extensively used for image recovery with known measurement operators,…

Cited by 14SourcePDFScholar
2023

Robustness of Deep Equilibrium Architectures to Changes in the Measurement Model

ICASSP 2023accepted

Deep model-based architectures (DMBAs) are widely used in imaging inverse problems to integrate physical measurement models and learned image priors. Plug-and-play priors (PnP) and deep equilibrium models (DEQ) are two DMBA frameworks that have received significant attention. The key difference betw…

Cited by 0SourceScholar
2022

Online Deep Equilibrium Learning for Regularization by Denoising

NeurIPS 2022accept

Plug-and-Play Priors (PnP) and Regularization by Denoising (RED) are widely-used frameworks for solving imaging inverse problems by computing fixed-points of operators combining physical measurement models and learned image priors. While traditional PnP/RED formulations have focused on priors specif…