Comments (5)
没有遇到过,STEP在METR-LA、PeMS-BAY、PeMS03、PeMS04、PeMS07、PeMS08上都做过实验,看起来一切正常。
from step.
您好,我根据您提供的数据预处理代码生成了训练数据,在METR-LA、PeMS-BAY都能够看到和您提供的训练日志几乎一样的结果,我换了个数据集后发现损失值很大且很难下降。数据集是下面这个电力的数据集:
https://archive.ics.uci.edu/ml/datasets/ElectricityLoadDiagrams20112014
然后由于数据集太大,我进行了降采样:
https://drive.google.com/file/d/1SAcq-cHZqhnwPL5gjm6yo6dMbW_ec2Rn/view?usp=share_link
我使用您提出的预训练tsformer模型预训练降采样后的数据集,发现训练损失很大,是我超参数设置的不合理嘛?
from step.
非常感谢您的回复
from step.
抱歉,我没有在ETT上做过实验,无法给您具体的解答,只能给您一些模糊的见解。
一方面,ETT数据集的采样频率、取值范围、异常值数据等和我提到的数据集完全不同,建议您检查数据预处理是不是正确,得到的格式是否符合STEP的要求。
另一方面,ETT数据集的特点是没有明显的模式、分布飘逸特别严重、噪声较大。不太建议您在上面做研究,很难得到可靠的结论。考虑到其模式不明确、噪声大,所以模型结构越复杂,效果越差。您可以考虑使用我的另一个仓库中的STID模型,可以直接打败一众Transformer模型和Linear模型。但总的来说,个人感觉ETT数据集不太适合做科研,真想刷榜,使用一些工程化的方法(多采样、层次化、集成学习等)效果更加显著。
from step.
感谢大佬。
from step.
Related Issues (20)
- About STEP-DCRNN HOT 4
- 关于pre-training结果的复现 HOT 7
- 关于adj_mx.pkl这个数据集的问题 HOT 1
- 数据集替换 HOT 1
- Error HOT 6
- torch.cuda.OutOfMemoryError
- 作者你好,请问这个可以用单步预测里面吗,类似mtgnn 里exchage那种的
- 复现出现张量维度不匹配 HOT 3
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- launch_training() got an unexpected keyword argument 'devices'
- 请问如何用TSformer预训练模型,是否有readme文件介绍步骤 HOT 2
- 用自己的数据集来 预训练 模型时,如何配置 HOT 2
- 配置“CFG.RE_SCALE=False” HOT 3
- 单变量是否可以用这个预训练模型 HOT 2
- 数据集只有两列,请问是否可以用tsformer预训练模型 HOT 4
- About Figure 1 in the Paper HOT 4
- Setting of input and output length of compared model
- TSFormer预训练模型是否可以处理时间序列多通道数据? HOT 3
- 关于discrere_graph_learning.py 中的train_length HOT 1
- 多卡训练失败问题 HOT 3
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from step.