How to find the model works better from the RMSE and CV score?

machine_learning

#1

How to find the model works better from the RMSE and CV score? I have included all the model in bigmart sales problem but can’t understand the technique.


#2

Hi,

To compare the performance of models, you can check the rmse value or the cv score. Fit a model, let’s say random forest, and calculate the rmse. Next, fit another model, suppose xgboost, and calculate the rmse again.

The model that gives a lesser rmse, is better.


#3

Same for cv score just check increase for better fit.