How to Develop a Gradient Boosting Machine Ensemble in Python

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The Gradient Boosting Machine is a powerful ensemble machine learning algorithm that uses decision trees. Boosting is a general ensemble technique that involves sequentially adding models to the ensemble where subsequent models correct the performance of prior models. AdaBoost was the first algorithm to deliver on the promise of boosting. Gradient boosting is a generalization of AdaBoosting, improving the performance of the approach and introducing ideas from bootstrap aggregation to further improve the models, such as randomly sampling the samples and features when fitting ensemble members. Gradient boosting performs well, if not the best, on a wide range of tabular datasets, and versions of the algorithm like XGBoost and LightBoost often play an important role in winning machine learning competitions.

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