What is the appropriate Method to normalize inputs data ????

Question

omar belhaj 2015-3-27

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/194930-what-is-the-appropriate-method-to-normalize-inputs-data

回答： Greg Heath 2015-3-28

I used sigmoidal function as activation function in hidden layer (forecasting issues).who is interval can i choose to normalize my inputs datasets [-1,1] or [0.1,0.9] ?? and how can i do it ?? by default i used these following commands :

net.inputs{1}.processFcns = {'removeconstantrows','mapminmax'};
net.outputs{2}.processFcns = {'removeconstantrows','mapminmax'};

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Greg Heath 2015-3-28

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/194930-what-is-the-appropriate-method-to-normalize-inputs-data#answer_173023

The data is automatically normalized in the training function. You do not have to do anything extra except to make sure that your input and target data don't have any errors or outliers.

As far as outlier detection is concerned, I typically use zscore BEFORE training.

Hope this helps.

Thank you for formally accepting my answer

Greg