Multivariate time-series forecasting with temporal polynomial graph neural networks
Modeling multivariate time series (MTS) is critical in modern intelligent systems. The
accurate forecast of MTS data is still challenging due to the complicated latent variable …
accurate forecast of MTS data is still challenging due to the complicated latent variable …
Simplicial vector autoregressive model for streaming edge flows
Vector autoregressive (VAR) model is widely used to model time-varying processes, but it
suffers from prohibitive growth of the parameters when the number of time series exceeds a …
suffers from prohibitive growth of the parameters when the number of time series exceeds a …
[HTML][HTML] Explainable spatio-temporal graph evolution learning with applications to dynamic brain network analysis during development
Modeling dynamic interactions among network components is crucial to uncovering the
evolution mechanisms of complex networks. Recently, spatio-temporal graph learning …
evolution mechanisms of complex networks. Recently, spatio-temporal graph learning …
Signal processing over time-varying graphs: A systematic review
As irregularly structured data representations, graphs have received a large amount of
attention in recent years and have been widely applied to various real-world scenarios such …
attention in recent years and have been widely applied to various real-world scenarios such …
Online edge flow imputation on networks
An online algorithm for missing data imputation for networks with signals defined on the
edges is presented. Leveraging the prior knowledge intrinsic to real-world networks, we …
edges is presented. Leveraging the prior knowledge intrinsic to real-world networks, we …
A graph-assisted framework for multiple graph learning
X Zhang, Q Wang - … on Signal and Information Processing over …, 2024 - ieeexplore.ieee.org
In this paper, we endeavor to jointly learn multiple distinct but related graphs by exploiting
the underlying topological relationships between them. The difficulty lies in how to design a …
the underlying topological relationships between them. The difficulty lies in how to design a …
Graph learning from incomplete graph signals: From batch to online methods
X Zhang, Q Wang - Signal Processing, 2025 - Elsevier
Inferring graph topologies from data is crucial in many graph-related applications. Existing
works typically assume that signals are observed at all nodes, which may not hold due to …
works typically assume that signals are observed at all nodes, which may not hold due to …
Sparse Covariance Neural Networks
Covariance Neural Networks (VNNs) perform graph convolutions on the covariance matrix
of tabular data and achieve success in a variety of applications. However, the empirical …
of tabular data and achieve success in a variety of applications. However, the empirical …
A linearly convergent optimization framework for learning graphs from smooth signals
Learning graph structures from a collection of smooth graph signals is a fundamental
problem in data analysis and has attracted much interest in recent years. Although various …
problem in data analysis and has attracted much interest in recent years. Although various …
Structural knowledge informed continual multivariate time series forecasting
Recent studies in multivariate time series (MTS) forecasting reveal that explicitly modeling
the hidden dependencies among different time series can yield promising forecasting …
the hidden dependencies among different time series can yield promising forecasting …