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math.OC2023
An equivalent reformulation and multi-proximity gradient algorithms for a class of nonsmooth fractional programming
Junpeng Zhou, Na Zhang, Qia Li
In this paper, we consider a class of structured fractional programs, where the numerator part is the sum of a block-separable (possibly nonsmooth nonconvex) function and a locally…
math.OC2023
A Successive Two-stage Method for Sparse Generalized Eigenvalue Problems
Qia Li, Jianmin Liao, Lixin Shen +1
The Sparse Generalized Eigenvalue Problem (sGEP), a pervasive challenge in statistical learning methods including sparse principal component analysis, sparse Fisher's discriminant…
math.OC2023
Parameterized proximal-gradient algorithms for L1/L2 sparse signal recovery
Na Zhang, Xinrui Liu, Qia Li
The ratio of L1 and L2 norms (L1/L2), serving as a sparse promoting function, receives considerable attentions recently due to its effectiveness for sparse signal recovery. In this…