Jointly tuning base-learner hyperparameters and ensemble weights is claimed to lower test MSE versus independently tuned ensembles on 9 of 10 regression datasets, but the evaluation leaks test data into model selection.
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Optimizing Ensemble Weights and Hyperparameters of Machine Learning Models for Regression Problems
Jointly tuning base-learner hyperparameters and ensemble weights is claimed to lower test MSE versus independently tuned ensembles on 9 of 10 regression datasets, but the evaluation leaks test data into model selection.