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eess.SP2025
Iterative Polynomial Approximation Algorithms for Inverse Graph Filters
Cheng Cheng, Qiyu Sun, Cong Zheng
Chebyshev interpolation polynomials exhibit the exponential approximation property to analytic functions on a cube. Based on the Chebyshev interpolation polynomial approximation, w…
eess.SP2022
Graph Fourier transform based on singular value decomposition of directed Laplacian
Yang Chen, Cheng Cheng, Qiyu Sun
Graph Fourier transform (GFT) is a fundamental concept in graph signal processing. In this paper, based on singular value decomposition of Laplacian, we introduce a novel definitio…
eess.SP2022★ 1 cited
Wiener filters on graphs and distributed polynomial approximation algorithms
Cong Zheng, Cheng Cheng, Qiyu Sun
In this paper, we consider Wiener filters to reconstruct deterministic and (wide-band) stationary graph signals from their observations corrupted by random noises, and we propose d…