图形补丁变压器:具有适应式图形学习的补丁交互变压器,用于多变量时间序列预测
Chunyi Hou1, Yongchuan Yu1, Jinquan Ji1
1School of Information Science and Technology, Beijing University of Technology, Beijing, 100124, China.
概括
本研究介绍了Graph-Patchformer,这是一种用于多变量时间序列 (MTS) 预测的新型深度学习框架. 它有效地捕捉了系列内部和系列间的依赖性,优于对基准数据集的现有方法.
科学领域:
- 人工智能的人工智能
- 机器学习 机器学习
- 时间序列分析时间序列分析
背景情况:
- 传统的多变量时间序列 (MTS) 预测方法往往忽略了结构信息和序列间的依赖关系.
- 现有的深度学习方法可能无法有效地捕捉跨系列的局部动态依赖.
- 多尺度表示学习方法需要为最终输出提供额外的融合模块.
研究的目的:
- 提出一个新的深度学习框架,Graph-Patchformer,用于增强MTS预测.
- 解决捕获结构信息和系列间局部动态依赖性的局限性.
- 提高MTS预测模型的准确性和效率.
主要方法:
- Graph-Patchformer使用结构编码来表示系列间的关系和时间变化.
- 补丁交互 具有多头自我注意力和自适应图形学习的块捕获依赖关系.
- 该框架使补丁在不同时间序列内和跨越不同时间序列之间的相互作用成为可能.
主要成果:
- 与最先进的方法相比,Graph-Patchformer表现出优越的预测性能.
- 在各种现实世界的基准数据集中观察到显著的改进.
- 该模型有效地捕捉了系列内部和系列间的局部动态依赖.
结论:
- Graph-Patchformer为多变量时间序列预测提供了一种新且有效的方法.
- 该框架能够建模复杂的依赖关系,从而实现最先进的性能.
- 这项工作为智能数字化和发展提供了一个强大的新工具.
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