Results 41 to 50 of about 1,423,064 (275)
Irregularity-Aware Graph Fourier Transforms
IEEE Transactions on Signal Processing, 2018 In this paper, we present a novel generalization of the graph Fourier transform (GFT). Our approach is based on separately considering the definitions of signal energy and signal variation, leading to several possible orthonormal GFTs. Our approach includes traditional definitions of the GFT as special cases, while also leading to new GFT designs that ...
Benjamin Girault +2 more
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Fast Graph Fourier Transforms Based on Graph Symmetry and Bipartition [PDF]
IEEE Transactions on Signal Processing, 2019 14 pages, 15 ...
Keng-Shih Lu, Antonio Ortega
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Multi-dimensional Graph Fourier Transform
CoRR, 2017 Many signals on Cartesian product graphs appear in the real world, such as digital images, sensor observation time series, and movie ratings on Netflix. These signals are "multi-dimensional" and have directional characteristics along each factor graph. However, the existing graph Fourier transform does not distinguish these directions, and assigns 1-D ...
Takashi Kurokawa +2 more
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Analyzing the approximation error of the fast graph Fourier transform [PDF]
2017 51st Asilomar Conference on Signals, Systems, and Computers, 2017 The graph Fourier transform (GFT) is in general dense and requires O(n^2) time to compute and O(n^2) memory space to store. In this paper, we pursue our previous work on the approximate fast graph Fourier transform (FGFT). The FGFT is computed via a truncated Jacobi algorithm, and is defined as the product of J Givens rotations (very sparse orthogonal ...
Le Magoarou, Luc +2 more
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Applications of Fourier transform infrared spectroscopy [PDF]
, 2012 Podeu consultar el llibre complet a: http://hdl.handle.net/2445/32166This article summarizes the basic principles of Fourier Transform Infrared Spectroscopy, with examples of methodologies and applications to different field ...
Ferrer i Felis, Núria
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A FFT-Like MIMO Detection Algorithm
IEEE Access, 2020 This paper studies the multiple-input-multiple-output (MIMO) detection problem. Existing works model the MIMO detection as a tree or factor graph. This work adds a new member called the clique graph model to the MIMO detection graph model family so that ...
Peng Du, Yuan Zhang, Teer Ba
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A Directed Graph Fourier Transform With Spread Frequency Components [PDF]
IEEE Transactions on Signal Processing, 2019 15 pages, 13 figures.
Rasoul Shafipour +3 more
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GSD: An R package for graph signal decomposition
SoftwareXGraph signals residing on the vertices of a graph have recently gained prominence in research of various fields, including neural networks, social networks, traffic patterns, and sensors.
Hyeonglae Cho, Hee-Seok Oh, Donghoh Kim
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Molecular Oncology, EarlyView.BCL9 and BCL9L drive bladder cancer progression by enhancing β‐catenin signaling, promoting proliferation, migration, invasion, and organoid growth. Genetic depletion of BCL9(L) suppresses malignant phenotypes, while pharmacological disruption of the β‐catenin/BCL9(L) complex with ZW4864 inhibits canonical Wnt signaling and tumor‐associated cellular ...
Roland Kotolloshi +11 more
wiley +1 more source
Fractional fourier transform based monopulse radar for combating jamming interference [PDF]
, 2010 Monopulse radars are used to track a target that appears in the look direction beam width. The distortion produced when manmade high power interference (jamming).
Elgamel, Sherif A.E.H., Soraghan, J.J.
core +3 more sources