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Augmentation Randomization/Multiply

Any ideas how can I do a randomization with multiply or any way to the an augmentation with my dataset which only has 170 rows ?

The reason is that I need to do a split-test- validation and my dataset ist not big enough for that purpose!

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Telcontar120

I would recommend exploring weighting as a solution to imbalanced, small datasets. The other alternative is to us one of the upsampling operators from one of the free extensions.

MartinLiebig

Hi @Sunnyboy_nh ,

Another way is to use the Build Simulation operator, which is part of Operator Toolbox.

Cheers,

Martin

Sunnyboy_nh

Thanks Martin and Telcontar120 for your feedbacks and suggestions. Meanwhile I have looked at a similar operator in Rapidminer called Sample(Bootstaping) before Split Data Operator does that data augmentation by copying the exisiting rows.
Nevertheless I will try to check your suggestions as well