Machine Learning Data Window Length

2 次查看（过去 30 天）

MATLABmet 2017-10-19

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/362153-machine-learning-data-window-length

评论： Amy 2017-10-26

Hi All,

I am experimenting with feature extraction techniques on some accelerometer data in order to create a predictive model(using the classification learner app and various ML approaches). I would like some advice on the window size. The sets of data I have are between 10 and 15 seconds long (sampled at 200Hz). However, I would guess that the features should be extracted from a much smaller window than this.. say 1-2 seconds ?

Once i've imported my ~10 seconds worth of data into Matlab, is it possible to specify a set window size in which the data is analysied and features are extracted ?

Thanks in advance.

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

Amy 2017-10-26

Once you've imported your sets of ~10 seconds of data, have you tried just partitioning each of those sets into multiple sets that each correspond to 1-2 seconds of time?

请先登录，再进行评论。

请先登录，再回答此问题。