Comparar métodos

	Aprendizado de Métrica por Ensemble	Comitê de Votação
Área	Aprendizado de máquina	Aprendizado de máquina
Família	Machine learning	Machine learning
Ano de origem	2000s–2010s	1990s–2004
Autor original	Multiple contributors (Weinberger, Saul, et al.)	Lam & Suen; Kuncheva, L. I. (systematic treatment)
Tipo	Ensemble of learned distance metrics	Ensemble (combination of multiple classifiers by vote)
Fonte seminal	Wang, J., Kalousis, A., & Woznica, A. (2012). Parametric local metric learning for nearest neighbor classification. Advances in Neural Information Processing Systems, 25.	Kuncheva, L. I. (2004). Combining Pattern Classifiers: Methods and Algorithms. Wiley-Interscience. ISBN: 978-0-471-21078-8
Outros nomes	EML, ensemble distance metric learning, multiple metric fusion, combined metric learning	majority voting classifier, hard voting, soft voting ensemble, plurality voting ensemble
Relacionados	5	5
Resumo	Ensemble Metric Learning trains multiple distance metric learners — each on a different data view, feature subspace, or with a different objective — and combines the resulting metrics to produce a single, more robust similarity function. Combining diverse metrics reduces the variance of any individual metric and improves performance in tasks such as nearest-neighbor classification, retrieval, and few-shot learning.	A voting ensemble trains several diverse classifiers independently and combines their predictions by a vote: hard voting picks the class chosen by the most models, while soft voting averages their class-probability estimates, optionally with per-model weights. The combination usually outperforms any individual member, and requires no additional training after the base models are fitted.