xgboost
XGBoost
XGBoost is the winningest algorithm in Kaggle history for tabular data. v2.1 (2025) brings native Blackwell GPU support and Polars integration.
When to Use
- Tabular Data: It usually beats Deep Learning on structured tables.
- Speed: Extremely optimized C++ backend.
Core Concepts
Gradient Boosting
Building extensive decision trees sequentially, each correcting the previous one's errors.
DMatrix
Internal optimized data structure.
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