10 citations · 26 across the 14 of their papers we have counts for
4 papers · 1 filter
A note on sharp oracle bounds for Slope and Lasso
Zhiyong Zhou
In this paper, we study the sharp oracle bounds for Slope and Lasso and generalize the results in Bellec et al. (2018) to allow the case that the parameter vector is not exactly sp…
A Unified Framework for Constructing Nonconvex Regularizations
Zhiyong Zhou
Over the past decades, many individual nonconvex methods have been proposed to achieve better sparse recovery performance in various scenarios. However, how to construct a valid no…
Sparse recovery based on the generalized error function
Zhiyong Zhou
In this paper, we propose a novel sparse recovery method based on the generalized error function. The penalty function introduced involves both the shape and the scale parameters,…
Block sparse signal recovery via minimizing the block -ratio sparsity
Zhiyong Zhou
In this paper, we propose a method for block sparse signal recovery that minimizes the block -ratio sparsity $\left(\lVert z\rVert_{2,1}/\lVert z\rVert_{2,q}\right)^{\frac{q}{q-…