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Different performance between grid search and real test
Hi guys,
I used optimize parameters to find the best parameters' values with 10 fold cross-validation, and it showed out that the best kappa was 0.397. But when I applied these parameter values to 10 fold cross-validation myself, the kappa was only 0.337.
What's wrong?
Thank you.
I used optimize parameters to find the best parameters' values with 10 fold cross-validation, and it showed out that the best kappa was 0.397. But when I applied these parameter values to 10 fold cross-validation myself, the kappa was only 0.337.
What's wrong?
Thank you.
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Answers
Dortmund, Germany
Dortmund, Germany