Description: Subsampling in XGBoost refers to the fraction of samples that will be used for each tree in the model training process. This technique is essential for preventing overfitting, a common problem in complex models that can learn noisy patterns in the training data. By limiting the amount of data used to build each tree, diversity among the model’s trees is encouraged, which can lead to better overall performance. Subsampling can also help reduce training time, as fewer data points are used in each iteration. In XGBoost, this parameter can be adjusted to find an optimal balance between model accuracy and generalization capability. Additionally, subsampling can be particularly useful in large datasets, where the computational cost of training with all samples can be prohibitive. In summary, subsampling is a powerful tool in the hyperparameter optimization of XGBoost, allowing analysts and data scientists to enhance the robustness and efficiency of their predictive models.
PATROCINADORES
