XGBoost & LightGBM - Gradient Boosting for Tabular Data XGBoost (eXtreme Gradient Boosting) and LightGBM (Light Gradient Boosting Machine) are the de facto standard libraries for machine learning on tabular/structured data. They consistently win Kaggle competitions and are widely used in industry for their speed, accuracy, and robustness. When to Use - Classification or regression on tabular data (CSVs, databases, spreadsheets). - Kaggle competitions or data science competitions on structured data. - Feature importance analysis and feature selection. - Handling missing values automatically (n…