Gradient Boosting for Competitive Predictions
Random Forest
Random Forest is an ensemble learning method primarily used for classification and
regression tasks. It operates by constructing multiple decision trees during training
and outputting the mode of the classes (classification) or the mean prediction
(regression) of the individual trees.
Key Concepts
Ensemble Learning:
1. Combines multiple machine learning models to improve overall
performance.
2. Reduces overfitting and increases stability.
Decision Trees:
1. The building blocks of a random forest.
2. A tree structure where nodes represent feature attributes, branches
represent decision rules, and leaves represent outcomes.
Bagging (Bootstrap Aggregating):
1. Random sampling with replacement to create multiple training
datasets.