Long Li

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math.OC2025

SVD method for sparse recovery

Long Li, Liang Ding

Sparsity regularization has garnered significant interest across multiple disciplines, including statistics, imaging, and signal processing. Standard techniques for addressing spar…

math.OC2025

$ℓ_{1}^{2} - I^\cdot ℓ_{2}^{2}$ regularization for sparse recovery

Long Li, Liang Ding

This paper presents a regularization technique incorporating a non-convex and non-smooth term, $ℓ_{1}^{2} - I^\cdot ℓ_{2}^{2}$ , with parameters $0 < I^\cdot \leq 1$ designed to address ill-p…

SVD method for sparse recovery

ℓ12​−I^⋅ℓ22​ regularization for sparse recovery

$ℓ_{1}^{2} - I^\cdot ℓ_{2}^{2}$ regularization for sparse recovery