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English(EN) WaveletDiff: Multilevel Wavelet Diffusion For Time Series Generation

WaveletDiff框架使用小波系数生成合成时间序列

研究人员开发了WaveletDiff,一个新颖的框架,通过在小波系数上训练扩散模型来生成合成时间序列数据。该方法利用时间序列的多分辨率结构,结合了Transformer和跨层注意力机制,以实现不同尺度之间的信息交换。WaveletDiff还利用了源自Parseval定理的特定层能量约束,以在生成过程中保持时频特性。在六个真实世界数据集上的实验表明,WaveletDiff的表现优于FourierDiffusion和Diffusion-TS等现有扩散模型,并且在参数更少、训练时间更短的情况下,与MSDformer相当。 AI

影响 这种新的合成时间序列生成方法可以改善医疗和金融等领域的预测和分析数据的可用性。

排序理由 该集群描述了一篇详细介绍新颖时间序列生成框架的研究论文。[lever_c_demoted from research: ic=1 ai=1.0]

在 arXiv cs.LG 阅读 →

AI 生成摘要 · Google Gemini · 来自 1 个来源。 我们如何撰写摘要 →

WaveletDiff框架使用小波系数生成合成时间序列

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该集群描述了一篇详细介绍新颖时间序列生成框架的研究论文。[lever_c_demoted from research: ic=1 ai=1.0]
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报道来源 [1]

  1. arXiv cs.LG TIER_1 English(EN) · Yu-Hsiang Wang, Olgica Milenkovic ·

    WaveletDiff: 多尺度小波扩散用于时间序列生成

    arXiv:2510.11839v3 Announce Type: replace Abstract: Time series are ubiquitous in many applications that involve forecasting, classification and causal inference tasks, such as healthcare, finance, audio signal processing and climate sciences. Still, large, high-quality time seri…