2 papers
math.OC2023
Error estimation for the non-convex cosparse optimization problem
Zisheng Liu, Ting Zhang
When the signal does not have a sparse structure but has sparsity under a certain transformation domain, Nam et al. \cite{NS} introduced the cosparse analysis model, which provides…
math.OC2023
Convergence analysis on the alternating direction method of multipliers for the cosparse optimization problem
Zisheng Liu, Ting Zhang
From a dual perspective of the sparse representation model, Nam et al. proposed the cosparse analysis model. In this paper, we aim to investigate the convergence of the alternating…