Scalable Bayesian uncertainty quantification with data-driven priors for radio interferometric imaging
Next-generation radio interferometers like the Square Kilometer Array have the potential to
unlock scientific discoveries thanks to their unprecedented angular resolution and …
unlock scientific discoveries thanks to their unprecedented angular resolution and …
Provably convergent plug-and-play quasi-Newton methods
Plug-and-Play (PnP) methods are a class of efficient iterative methods that aim to combine
data fidelity terms and deep denoisers using classical optimization algorithms, such as ISTA …
data fidelity terms and deep denoisers using classical optimization algorithms, such as ISTA …
Asynchronous multi-model dynamic federated learning over wireless networks: Theory, modeling, and optimization
Federated learning (FL) has emerged as a key technique for distributed machine learning
(ML). Most literature on FL has focused on ML model training for (i) a single task/model, with …
(ML). Most literature on FL has focused on ML model training for (i) a single task/model, with …
What's in a Prior? Learned Proximal Networks for Inverse Problems
Proximal operators are ubiquitous in inverse problems, commonly appearing as part of
algorithmic strategies to regularize problems that are otherwise ill-posed. Modern deep …
algorithmic strategies to regularize problems that are otherwise ill-posed. Modern deep …
Weakly Convex Regularisers for Inverse Problems: Convergence of Critical Points and Primal-Dual Optimisation
Variational regularisation is the primary method for solving inverse problems, and recently
there has been considerable work leveraging deeply learned regularisation for enhanced …
there has been considerable work leveraging deeply learned regularisation for enhanced …
Error Estimates for Data-driven Weakly Convex Frame-based Image Regularization
Inverse problems are fundamental in fields like medical imaging, geophysics, and
computerized tomography, aiming to recover unknown quantities from observed data …
computerized tomography, aiming to recover unknown quantities from observed data …
[PDF][PDF] Boosting weakly convex ridge regularizers with spatial adaptivity
We propose to enhance 1-weakly convex ridge regularizers for image reconstruction by
incorporating spatial adaptivity. To this end, we resort to a neural network that generates a …
incorporating spatial adaptivity. To this end, we resort to a neural network that generates a …
Efficient image restoration via non-convex total variation regularization and ADMM optimization
This article presents a novel approach to image restoration utilizing a unique non-convex l
1/2-TV regularization model. This model integrates the l 1/2-quasi norm as a regularization …
1/2-TV regularization model. This model integrates the l 1/2-quasi norm as a regularization …
On the Strong Convexity of PnP Regularization using Linear Denoisers
A Sinha, KN Chaudhury - IEEE Signal Processing Letters, 2024 - ieeexplore.ieee.org
In the Plug-and-Play (PnP) method, a denoiser is used as a regularizer within classical
proximal algorithms for image reconstruction. It is known that a broad class of linear …
proximal algorithms for image reconstruction. It is known that a broad class of linear …
The Star Geometry of Critic-Based Regularizer Learning
Variational regularization is a classical technique to solve statistical inference tasks and
inverse problems, with modern data-driven approaches parameterizing regularizers via …
inverse problems, with modern data-driven approaches parameterizing regularizers via …