A New Surrogating Algorithm by the Complex Graph Fourier Transform (CGFT) [PDF]
Entropy, 2019 The essential step of surrogating algorithms is phase randomizing the Fourier transform while preserving the original spectrum amplitude before computing the inverse Fourier transform.
Jordi Belda +2 more
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A Graph Fourier Transform Based Bidirectional Long Short-Term Memory Neural Network for Electrophysiological Source Imaging [PDF]
Frontiers in Neuroscience, 2022 Electrophysiological source imaging (ESI) refers to the process of reconstructing underlying activated sources on the cortex given the brain signal measured by Electroencephalography (EEG) or Magnetoencephalography (MEG).
Meng Jiao +8 more
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Graph Fourier transform for spatial omics representation and analyses of complex organs [PDF]
Nature CommunicationsSpatial omics technologies decipher functional components of complex organs at cellular and subcellular resolutions. We introduce Spatial Graph Fourier Transform (SpaGFT) and apply graph signal processing to a wide range of spatial omics profiling ...
Yuzhou Chang +15 more
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On the Graph Fourier Transform for Directed Graphs [PDF]
IEEE Journal on Selected Topics in Signal Processing, 2017 To appear in IEEE Journal of Selected Topics in Signal Processing ...
Stefania Sardellitti +2 more
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Graph Fourier transform based on ℓ1 norm variation minimization [PDF]
Applied and Computational Harmonic Analysis, 2021 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 graph Laplacian matrix, which minimize the $\ell_2$ norm signal variation. However, the computation of Laplacian eigenvectors is expensive when the graph is large. In this paper,
Lihua Yang +2 more
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Graph Fourier Transform Based Audio Zero-Watermarking [PDF]
IEEE Signal Processing Letters, 2021 The frequent exchange of multimedia information in the present era projects an increasing demand for copyright protection. In this work, we propose a novel audio zero-watermarking technology based on graph Fourier transform for enhancing the robustness with respect to copyright protection.
Longting Xu +2 more
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Spectral graph fractional Fourier transform for directed graphs and its application
Signal Processing, 2023 In graph signal processing, many studies assume that the underlying network is undirected. Although the digraph model is rarely adopted, it is more appropriate for many applications, especially for real world networks. In this paper, we present a general framework for extending the graph signal processing to directed graphs in graph fractional domain ...
Bing-Zhao Li
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ECG Arrhythmia Classification using High Order Spectrum and 2D Graph Fourier Transform
Applied Sciences (Switzerland), 2020 Heart diseases are in the front rank among several kinds of life threats, due to its high incidence and mortality. Regarded as a powerful tool in the diagnosis of the cardiac disorder and arrhythmia detection, analysis of electrocardiogram (ECG) signals ...
Tianjiao Kong +2 more
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Computation of Graph Fourier Transform Centrality Using Graph Filter
IEEE Open Journal of Circuits and SystemsIn this paper, the computation of graph Fourier transform centrality (GFTC) of complex network using graph filter is presented. For conventional computation method, it needs to use the non-sparse transform matrix of graph Fourier transform (GFT) to ...
Chien-Cheng Tseng, Su-Ling Lee
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A joint range–angle–velocity estimation algorithm for FDA-MIMO radar based on graph signal processing [PDF]
Scientific ReportsIn this paper, a novel Frequency Diverse Array–Multiple Input Multiple Output (FDA-MIMO) radar parameter estimation algorithm based on Graph Signal Processing (GSP) is proposed for joint range–angle–velocity estimation.
Qinlin Li +6 more
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