3 papers
math.OC2025
A proximal algorithm incorporating difference of convex functions optimization for solving a class of single-ratio fractional programming
Anna Qi, Jianfeng Huang, Lihua Yang +1
In this paper, we consider a class of single-ratio fractional minimization problems, where both the numerator and denominator of the objective are convex functions satisfying posit…
eess.SP2022
Atomic Filter: a Weak Form of Shift Operator for Graph Signals
Lihua Yang, Qing Zhang, Qian Zhang +1
The shift operation plays a crucial role in the classical signal processing. It is the generator of all the filters and the basic operation for time-frequency analysis, such as win…
cs.IT2019
Graph Fourier Transform Based on Norm Variation Minimization
Lihua Yang, Anna Qi, Chao Huang +1
The definition of the graph Fourier transform is a fundamental issue in graph signal processing. Conventional graph Fourier transform is defined through the eigenvectors of the gra…