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CSDI:Conditional Score-based Diffusion Models for Probabilistic Time Series Imputation
Created
2024-11-25
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Updated
2025-04-24
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Author:
ALTNT
Link:
http://blog.705553939.xyz/2024/11/25/diffusion/2021-NeauralPS-CSDI/
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All articles in this blog are licensed under
CC BY-NC-SA 4.0
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diffusion
Sequence Processing
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Contents
1.
CSDI: Conditional Score-based Diffusion Models for Probabilistic Time Series Imputation
1.1.
摘要
1.2.
引言
1.3.
2 相关工作
1.4.
3、背景
1.4.1.
3.1 多元时间序列插补
1.4.2.
3.2 去噪扩散概率模型
1.4.3.
3.3 扩散模型的插补
1.5.
4 条件分数扩散模型用于插补(CSDI)
1.5.1.
4.1 用 CSDI 进行插补
1.5.2.
4.2 CSDI 的训练
1.5.3.
4.3 自监督学习中插补目标的选择
1.6.
5 时间序列插补的 CSDI 实现
1.6.1.
注意力机制
1.6.2.
边信息(Side information)
1.7.
6 实验结果
1.7.1.
6.1 时间序列插补
1.7.1.1.
数据集和实验设置:
1.7.1.2.
概率插补的结果
1.7.1.3.
确定性插补的结果。
1.7.2.
6.2 不规则采样时间序列的插值
1.7.2.1.
结果:
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