A survey on graph neural networks for time series: Forecasting, classification, imputation, and anomaly detection

M **, HY Koh, Q Wen, D Zambon… - … on Pattern Analysis …, 2024 - ieeexplore.ieee.org
Time series are the primary data type used to record dynamic system measurements and
generated in great volume by both physical sensors and online processes (virtual sensors) …

HRST-LR: a hessian regularization spatio-temporal low rank algorithm for traffic data imputation

X Xu, M Lin, X Luo, Z Xu - IEEE Transactions on Intelligent …, 2023 - ieeexplore.ieee.org
Intelligent Transportation Systems (ITSs) are vital for alleviating traffic congestion and
improving traffic efficiency. Due to the delay of network transmission and failure of detectors …

Pristi: A conditional diffusion framework for spatiotemporal imputation

M Liu, H Huang, H Feng, L Sun… - 2023 IEEE 39th …, 2023 - ieeexplore.ieee.org
Spatiotemporal data mining plays an important role in air quality monitoring, crowd flow
modeling, and climate forecasting. However, the originally collected spatiotemporal data in …

Memory-augmented dynamic graph convolution networks for traffic data imputation with diverse missing patterns

Y Liang, Z Zhao, L Sun - Transportation Research Part C: Emerging …, 2022 - Elsevier
Missing data is an inevitable and ubiquitous problem for traffic data collection in intelligent
transportation systems. Recent research has employed graph neural networks (GNNs) for …

An observed value consistent diffusion model for imputing missing values in multivariate time series

X Wang, H Zhang, P Wang, Y Zhang, B Wang… - Proceedings of the 29th …, 2023 - dl.acm.org
Missing values, which are common in multivariate time series, is most important obstacle
towards the utilization and interpretation of those data. Great efforts have been employed on …