Ada-MSHyper: Adaptive Multi-Scale Hypergraph Transformer for Time Series Forecasting

• URL: http://arxiv.org/abs/2410.23992v1
• Date: Thu, 31 Oct 2024 14:51:09 GMT
• Title: Ada-MSHyper: Adaptive Multi-Scale Hypergraph Transformer for Time Series Forecasting
• Authors: Zongjiang Shang, Ling Chen, Binqing wu, Dongliang Cui,
• Abstract summary: We propose Adaptive Multi-Scale Hypergraph Transformer (Ada-MSHyper) for time series forecasting. Ada-MSHyper achieves state-of-the-art performance, reducing prediction errors by an average of 4.56%, 10.38%, and 4.97% in MSE for long-range, short-range, and ultra-long-range time series forecasting.
• Score: 5.431115840202783
• License:
• Abstract: Although transformer-based methods have achieved great success in multi-scale temporal pattern interaction modeling, two key challenges limit their further development: (1) Individual time points contain less semantic information, and leveraging attention to model pair-wise interactions may cause the information utilization bottleneck. (2) Multiple inherent temporal variations (e.g., rising, falling, and fluctuating) entangled in temporal patterns. To this end, we propose Adaptive Multi-Scale Hypergraph Transformer (Ada-MSHyper) for time series forecasting. Specifically, an adaptive hypergraph learning module is designed to provide foundations for modeling group-wise interactions, then a multi-scale interaction module is introduced to promote more comprehensive pattern interactions at different scales. In addition, a node and hyperedge constraint mechanism is introduced to cluster nodes with similar semantic information and differentiate the temporal variations within each scales. Extensive experiments on 11 real-world datasets demonstrate that Ada-MSHyper achieves state-of-the-art performance, reducing prediction errors by an average of 4.56%, 10.38%, and 4.97% in MSE for long-range, short-range, and ultra-long-range time series forecasting, respectively. Code is available at https://github.com/shangzongjiang/Ada-MSHyper.

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