Which scoring for GridSearchCV is best, when imbalanced multiclass dataset?
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02-11-2019 - |
문제
I have an unbalanced multiclass dataset (GTSRB) and want to optimize the hyperparameters of an SVM through GridSearchCV. I know that accuracy is not suitable for scoring in this case. Which evaluation method for scoring would be most appropriate in this case?
At the moment I tend between the following: - f1_score (average='macro') - cohen_kappa_score
What are your experiences in such cases?
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