手法を比較

	勾配ブースティングアンサンブル	ランダムフォレスト
分野	機械学習	機械学習
系統	Machine learning	Machine learning
提唱年	2001	2001
提唱者	Friedman, J. H.	Breiman, L.
種類	Ensemble (sequential boosting of decision trees)	Ensemble (bagging of decision trees)
原典	Friedman, J. H. (2001). Greedy function approximation: A gradient boosting machine. Annals of Statistics, 29(5), 1189–1232.	Breiman, L. (2001). Random Forests. Machine Learning, 45, 5–32.
別名	Gradient Boosting Machine, GBM, Gradient Tree Boosting, Stochastic Gradient Boosting	Rastgele Orman (Random Forest), rastgele orman, random decision forest, bagged tree ensemble
関連	6	4
概要	Gradient Boosting is an ensemble method introduced by Jerome Friedman in 2001 that builds a strong predictive model by sequentially adding shallow decision trees, each correcting the errors of the previous ensemble. By framing the problem as gradient descent in function space, it achieves state-of-the-art accuracy on classification, regression, and ranking tasks across tabular data.	Random Forest is an ensemble learning method, introduced by Leo Breiman in 2001, that grows many decision trees on bootstrap samples of the data and combines their votes to produce strong classification and regression. By pooling many slightly different trees, it produces more accurate and more stable predictions than any single tree.