Multivariate Time Series Forecasting with Dynamic Graph Neural ODEs. Jin, M., Zheng, Y., Li, Y., Chen, S., Yang, B., & Pan, S. https://github.com/GRAND-Lab/MTGODE, 2022. cite arxiv:2202.08408Comment: 14 pages, 6 figures, 5 tables
Multivariate Time Series Forecasting with Dynamic Graph Neural ODEs [link]Paper  doi  abstract   bibtex   
Multivariate time series forecasting has long received significant attention in real-world applications, such as energy consumption and traffic prediction. While recent methods demonstrate good forecasting abilities, they have three fundamental limitations. (i) Discrete neural architectures: Interlacing individually parameterized spatial and temporal blocks to encode rich underlying patterns leads to discontinuous latent state trajectories and higher forecasting numerical errors. (ii) High complexity: Discrete approaches complicate models with dedicated designs and redundant parameters, leading to higher computational and memory overheads. (iii) Reliance on graph priors: Relying on predefined static graph structures limits their effectiveness and practicability in real-world applications. In this paper, we address all the above limitations by proposing a continuous model to forecast $\textbf{M}$ultivariate $\textbf{T}$ime series with dynamic $\textbf{G}$raph neural $\textbf{O}$rdinary $\textbf{D}$ifferential $\textbf{E}$quations ($\texttt{MTGODE}$). Specifically, we first abstract multivariate time series into dynamic graphs with time-evolving node features and unknown graph structures. Then, we design and solve a neural ODE to complement missing graph topologies and unify both spatial and temporal message passing, allowing deeper graph propagation and fine-grained temporal information aggregation to characterize stable and precise latent spatial-temporal dynamics. Our experiments demonstrate the superiorities of $\texttt{MTGODE}$ from various perspectives on five time series benchmark datasets.
@misc{jin2022multivariate,
  abstract = {Multivariate time series forecasting has long received significant attention
in real-world applications, such as energy consumption and traffic prediction.
While recent methods demonstrate good forecasting abilities, they have three
fundamental limitations. (i) Discrete neural architectures: Interlacing
individually parameterized spatial and temporal blocks to encode rich
underlying patterns leads to discontinuous latent state trajectories and higher
forecasting numerical errors. (ii) High complexity: Discrete approaches
complicate models with dedicated designs and redundant parameters, leading to
higher computational and memory overheads. (iii) Reliance on graph priors:
Relying on predefined static graph structures limits their effectiveness and
practicability in real-world applications. In this paper, we address all the
above limitations by proposing a continuous model to forecast
$\textbf{M}$ultivariate $\textbf{T}$ime series with dynamic $\textbf{G}$raph
neural $\textbf{O}$rdinary $\textbf{D}$ifferential $\textbf{E}$quations
($\texttt{MTGODE}$). Specifically, we first abstract multivariate time series
into dynamic graphs with time-evolving node features and unknown graph
structures. Then, we design and solve a neural ODE to complement missing graph
topologies and unify both spatial and temporal message passing, allowing deeper
graph propagation and fine-grained temporal information aggregation to
characterize stable and precise latent spatial-temporal dynamics. Our
experiments demonstrate the superiorities of $\texttt{MTGODE}$ from various
perspectives on five time series benchmark datasets.},
  added-at = {2023-04-12T09:42:14.000+0200},
  author = {Jin, Ming and Zheng, Yu and Li, Yuan-Fang and Chen, Siheng and Yang, Bin and Pan, Shirui},
  biburl = {https://www.bibsonomy.org/bibtex/223ded3d3d60124236732b3deb0609001/manli},
  description = {Multivariate Time Series Forecasting with Dynamic Graph Neural ODEs},
  doi = {10.1109/TKDE.2022.3221989},
  howpublished = {https://github.com/GRAND-Lab/MTGODE},
  interhash = {62fd3e28a424edddc6265a90fe9b54a4},
  intrahash = {23ded3d3d60124236732b3deb0609001},
  keywords = {ma_sem2023},
  note = {cite arxiv:2202.08408Comment: 14 pages, 6 figures, 5 tables},
  timestamp = {2023-04-12T09:43:59.000+0200},
  title = {Multivariate Time Series Forecasting with Dynamic Graph Neural ODEs},
  url = {http://arxiv.org/abs/2202.08408},
  year = 2022
}

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