Overfitting, Underfitting, Bias Variance Tradeoff, Bias, Variance.
solve this problem, we need to generalize the model. Increase the number of data points, or make a simpler model. For instance, instead of a RandomForest with n_estimators = 500 , try n_estimators =100. Underfitting model — The model is learning nothing useful from the data. The issue here is