フリー問題

問題文

A single decision tree fitted on this data changes a great deal when a few rows are removed, and its score on unseen records swings from run to run. Which change reduces that instability the most?

選択肢

1. The change that reduces it most is ensemble averaging in the design.
2. The change that reduces it most is dimensionality scaling in the design.
3. The change that reduces it most is hyperparameter freezing in the design.
4. The change that reduces it most is gradient clipping in the design.