2 papers
math.OC2020
First-order algorithms for a class of fractional optimization problems
Na Zhang, Qia Li
We consider in this paper a class of single-ratio fractional minimization problems, in which the numerator part of the objective is the sum of a nonsmooth nonconvex function and a…
math.OC2017
Capped Lp approximations for the composite L0 regularization problem
Qia Li, Na Zhang
The composite L0 function serves as a sparse regularizer in many applications. The algorithmic difficulty caused by the composite L0 regularization (the L0 norm composed with a lin…