방법 비교

	배깅 앙상블	다수결 투표
분야	앙상블 학습	앙상블 학습
계열	Machine learning	Machine learning
기원 연도	1996	1996
창시자	Leo Breiman	Leo Breiman
유형	parallel ensemble	voting aggregation
원전	Breiman, L. (1996). Bagging predictors. Machine Learning, 24(2), 123-140.	Breiman, L. (1996). Bagging predictors. Machine Learning, 24(2), 123-140.
별칭	bootstrap aggregating	hard voting
관련	4	5
요약	Bagging, short for bootstrap aggregating, is an ensemble method that reduces variance by training multiple copies of a single learning algorithm on different random subsets of the training data. Each subset is created via bootstrap sampling—randomly drawing samples with replacement. Predictions are combined through majority voting (classification) or averaging (regression). Introduced by Leo Breiman in 1996, bagging forms the foundation for random forests and is particularly effective for reducing overfitting in high-variance models.	Majority voting is an ensemble method that combines predictions from multiple base classifiers by selecting the class that receives the most votes. Each base classifier casts one vote for a predicted class, and the final prediction is the class with the majority (plurality). This approach was formalized by Leo Breiman and colleagues in the 1990s as a simple yet effective way to improve classification accuracy.