Reconstruction of time-varying graph signals via Sobolev smoothness

JH Giraldo, A Mahmood… - … on Signal and …, 2022‏ - ieeexplore.ieee.org
Graph Signal Processing (GSP) is an emerging research field that extends the concepts of
digital signal processing to graphs. GSP has numerous applications in different areas such …

Low-complexity graph sampling with noise and signal reconstruction via Neumann series

F Wang, G Cheung, Y Wang - IEEE Transactions on Signal …, 2019‏ - ieeexplore.ieee.org
Graph sampling addresses the problem of selecting a node subset in a graph to collect
samples, so that a K-bandlimited signal can be reconstructed with high fidelity. Assuming an …

Sparse sampling for inverse problems with tensors

G Ortiz-Jiménez, M Coutino… - IEEE Transactions on …, 2019‏ - ieeexplore.ieee.org
We consider the problem of designing sparse sampling strategies for multidomain signals,
which can be represented using tensors that admit a known multilinear decomposition. We …

Joint time-vertex linear canonical transform

Y Zhang, BZ Li - Digital Signal Processing, 2024‏ - Elsevier
The emergence of graph signal processing (GSP) has spurred a deep interest in signals that
naturally reside on irregularly structured data kernels, such as those found in social …

Efficient node selection strategy for sampling bandlimited signals on graphs

G Yang, L Yang, Z Yang… - IEEE Transactions on …, 2021‏ - ieeexplore.ieee.org
This paper addresses the problem of selecting an optimal sampling set for-bandlimited
signals on graphs. The proposed sampling method is based on two proposed concepts of …

Learning graph ARMA processes from time-vertex spectra

ET Güneyi, B Yaldız, A Canbolat… - IEEE Transactions on …, 2023‏ - ieeexplore.ieee.org
The modeling of time-varying graph signals as stationary time-vertex stochastic processes
permits the inference of missing signal values by efficiently employing the correlation …

Graph-time convolutional neural networks

E Isufi, G Mazzola - 2021 IEEE Data Science and Learning …, 2021‏ - ieeexplore.ieee.org
Spatiotemporal data can be represented as a process over a graph, which captures their
spatial relationships either explicitly or implicitly. How to leverage such a structure for …

EEG as signal on graph: a multilayer network model for BCI applications

T Cattai, G Scarano, MC Corsi… - 2022 30th European …, 2022‏ - ieeexplore.ieee.org
EEG signals acquired at different electrodes can be modelled as Signals on Graph, where
the graph structure reflects the underlying brain Functional Connectivity (FC), representing …

A joint Markov model for communities, connectivity and signals defined over graphs

S Colonnese, P Di Lorenzo, T Cattai… - IEEE Signal …, 2020‏ - ieeexplore.ieee.org
Real-world networks are typically described in terms of nodes, links, and communities,
having signal values often associated with them. The aim of this letter is to introduce a novel …

Sampling theory of jointly bandlimited time-vertex graph signals

H Sheng, H Feng, J Yu, F Ji, B Hu - Signal Processing, 2024‏ - Elsevier
Time-vertex graph signal (TVGS) models describe time-varying data with irregular
structures. The bandlimitedness in the joint time-vertex Fourier spectral domain reflects …