Wide-Sense Stationarity and Spectral Estimation for Generalized Graph Signal

Xingchao Jian; Wee Peng Tay

ICASSP 2022accepted0 citations

Wide-Sense Stationarity and Spectral Estimation for Generalized Graph Signal

Abstract

We consider a probabilistic model for graph signal processing (GSP) in a generalized framework where each vertex of a graph is associated with an element from a Hilbert space. We introduce the notion of joint wide-sense stationarity in this generalized GSP (GGSP) framework, which allows us to characterize a random graph process as a combination of uncorrelated oscillation modes across both the vertex and Hilbert space domains. We also propose a method for joint power spectral density estimation in case of missing features. Experiment results corroborate the effectiveness of our estimation approach.

BibTeX

@inproceedings{icassp2022_widesensestation,
  title = {Wide-Sense Stationarity and Spectral Estimation for Generalized Graph Signal},
  author = {Xingchao Jian and Wee Peng Tay},
  booktitle = {ICASSP 2022},
  year = {2022}
}