SUPR
Time Series Forecasting with GNNs
Dnr:

NAISS 2023/22-742

Type:

NAISS Small Compute

Principal Investigator:

Nancy Xu

Affiliation:

Kungliga Tekniska högskolan

Start Date:

2023-08-01

End Date:

2024-08-01

Primary Classification:

20299: Other Electrical Engineering, Electronic Engineering, Information Engineering

Webpage:

Allocation

Abstract

GNNs have seen great success in natural language processing and signal processing. We have investigated whether such results can be generalized to a broader range of time series by proposing a novel method of graph construction which do not rely on preexisting spatial or relational data and Time-GNN was developed. This method dynamically learns relationships between timesteps based on the behavior of the input time series. TimeGNN is able to achieve comparable forecasting performance while being far more scalable than existing GNN based approaches. However, improvements to forecasting quality and more benchmark comparisons still need to be done.