Results 21 to 30 of about 32,468 (150)

Graph Neural Network for Traffic Flow Situation Prediction

open access: yesJisuanji kexue yu tansuo, 2021
Road network structure integrated traffic flow situation prediction is a highly nonlinear and complexly spatial-temporal dynamic correlation time-series data prediction problem. However, traditional traffic flow situation forecasting methods cannot model
JIANG Shan, DING Zhiming, XU Xinrun, YAN Jin
doaj   +1 more source

Are there approximate fast fourier transforms on graphs? [PDF]

open access: yes2016 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2016
Signal processing on graphs is a recent research domain that seeks to extend classical signal processing tools such as the Fourier transform to irregular domains given by a graph. In such a graph setting, a way to rapidly apply the Fourier transform, i.e. a Fast Fourier Transform (FFT), is lacking.
Le Magoarou, Luc, Gribonval, Rémi
openaire   +2 more sources

Fast Discrete Fourier Transform Computations Using the Reduced Adder Graph Technique

open access: yesEURASIP Journal on Advances in Signal Processing, 2007
It has recently been shown that the n-dimensional reduced adder graph (RAG-n) technique is beneficial for many DSP applications such as for FIR and IIR filters, where multipliers can be grouped in multiplier blocks.
Andrew G. Dempster   +2 more
doaj   +2 more sources

Geary’s c and Spectral Graph Theory

open access: yesMathematics, 2021
Spatial autocorrelation, of which Geary’s c has traditionally been a popular measure, is fundamental to spatial science. This paper provides a new perspective on Geary’s c.
Hiroshi Yamada
doaj   +1 more source

Graph Fourier Transform: A Stable Approximation

open access: yesIEEE Transactions on Signal Processing, 2020
In Graph Signal Processing (GSP), data dependencies are represented by a graph whose nodes label the data and the edges capture dependencies among nodes. The graph is represented by a weighted adjacency matrix $A$ that, in GSP, generalizes the Discrete Signal Processing (DSP) shift operator $z^{-1}$.
João Domingos, José M. F. Moura
openaire   +2 more sources

Graph Fourier transform based on directed Laplacian [PDF]

open access: yes2016 International Conference on Signal Processing and Communications (SPCOM), 2016
5 ...
Rahul Singh 0002   +2 more
openaire   +2 more sources

Fast Incremental Spectral Clustering in Titanate Application via Graph Fourier Transform

open access: yesIEEE Access, 2020
In numerous applications the rapid increase of data size with time makes classical clustering algorithms too slow because of the high computational cost.
Gao Shu-Juan
doaj   +1 more source

A novel fault diagnosis method for power grid based on graph Fourier transform

open access: yesFrontiers in Energy Research, 2023
The fast and robust identification of fault elements is essential for the security and continuous operation of the power grid. The existing methods might be maloperation for bad data disturbance and require strict and exact synchronization.
Xiaojun Liao   +5 more
doaj   +1 more source

A robust spatio‐temporal prediction approach for wind power generation based on spectral temporal graph neural network

open access: yesIET Renewable Power Generation, 2022
At present, the penetration of wind power generation is increasing remarkably worldwide, and the accurate wind power forecasting (WPF) is essential to ensure the reliability and economy of the power system.
Yuqin He   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy