Parameter

Value

Description

Objective

binary: logistic

The objective function for binary classification.

colsample_bytree

0.3

Fraction of features used per tree, combating overfitting.

Learning Rate

0.01

Shrinks feature weights to improve model robustness.

Max Depth

12

Limits tree depth to prevent over-complex models.

reg_alpha

0.001

L1 regularization on weights, encouraging sparsity.

n_estimators

550

Total count of boosting trees to be constructed.

Random State

42

Ensures reproducibility with a fixed seed.