手法を比較

	デンプスター・シェーファーの融合	多数決 (Majority Voting)	加重投票
分野	アンサンブル学習	アンサンブル学習	意思決定
系統	Machine learning	Machine learning	MCDM
提唱年	1968	1996	1951
提唱者	Arthur Dempster	Leo Breiman	Arrow, K. J.
種類	belief fusion	voting aggregation	Social choice — weighted positional voting rule
原典	Dempster, A. P. (1968). A generalization of Bayesian inference. Journal of the Royal Statistical Society, 30(2), 205-247.	Breiman, L. (1996). Bagging predictors. Machine Learning, 24(2), 123-140.	Arrow, K. J. (1951). Social Choice and Individual Values. Wiley, New York
別名	belief function fusion, evidence combination	hard voting	—
関連	2	5	0
概要	Dempster-Shafer fusion is an ensemble method based on evidence theory (belief functions) that combines predictions from multiple sources by assigning basic probability masses to subsets of hypotheses. Rather than requiring a probability distribution over single outcomes, it allows uncertainty over sets of outcomes, providing a richer representation of confidence and doubt. Developed by Dempster (1968) and formalized by Shafer (1976), this method is particularly useful when sources are unreliable, conflicting, or provide partial evidence.	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.	WEIGHTED-VOTING (Weighted Voting — Weighted positional aggregation of multiple rankings) is a ranking multi-criteria decision-making (MCDM) method introduced by Arrow, K. J. in 1951. It turns a decision matrix of alternatives scored on multiple criteria into a structured, reproducible result.