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具有适应路由的多时间尺度表示,用于在时间转移下进行深度表式学习
Tianyu Wang1, Maite Zhang2, Mingxuan Lu3
1Global Institute of Future Technology, Shanghai Jiao Tong University, Shanghai, China; Department of Production Engineering, KTH Royal Institute of Technology, Stockholm, Sweden.
使用路由尺度的时间抽象 (TARS) 通过解决时间变化来增强深度表式学习. 这种方法通过动态优先考虑相关的时间尺度,强有力的调整模型以适应不断变化的数据,改善现实世界数据集的性能.
科学领域:
- 机器学习 机器学习
- 数据科学数据科学数据科学
- 人工智能的人工智能
背景情况:
- 在现实应用中,表式数据集经常经历时间转移,这可能会显著降低远程神经网络的性能.
- 当前的时间编码和适应方法通常将时间线索视为静态辅助变量,无法捕捉时间动态的多地平线和异质性质.
研究的目的:
- 介绍TARS (Temporal Abstraction with Routed Scales),一种新的插即用方法,旨在提供强大的表式学习,有效处理时间转移.
- 开发一种适用于各种深度学习模型骨干的方法,提高它们的时间稳定性.
主要方法:
- TARS采用显式时间编码器,使用结构化内存将时间分解为短期,中期和长期嵌入.
- 一个隐式漂移编码器跟踪更高阶的分布统计数据,以生成反映持续时间动态的漂移信号.
- 漂移感知路由机制根据当前条件适应权衡时间路径,通过特征-时间融合层将路由时间表示与原始特征集成.
主要成果:
- 在TabReD基准的八个现实数据集中,TARS在竞争方法上表现出一致的优势.
- 取得了显著的平均相对改善,包括在MLP上+2.38%和DCNv2.8上+4.08%.
- 废弃性研究证实了所有四个TARS模块的显著和互补的贡献.
结论:
- 通过动态适应不断变化的数据,TARS有效地提高了现有的深度表格模型的时间稳定性.
- 拟议的方法提供了一种多功能解决方案,用于在存在时间转移的情况下提高各种深度学习架构的性能.
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