Smoothing the Edges: A General Framework for Smooth Optimization in Sparse Regularization using Hadamard Overparametrization.
Chris KolbChristian L. MüllerBernd BischlDavid RügamerPublished in: CoRR (2023)
Keyphrases
- homogeneous areas
- optimization algorithm
- risk minimization
- mixed norm
- robust statistics
- global optimization
- stochastic gradient descent
- high dimensional
- structured sparsity
- removing noise
- smoothing parameter
- sparse representation
- bilateral filtering
- diffusion process
- edge preserving regularization
- sparsity inducing
- generalized cross validation
- objective function
- sparsity regularization
- elastic net
- region boundaries
- regularized least squares
- gaussian filter
- kernel machines
- compressive sensing
- regularization parameter
- edge information
- optimization problems