手法を比較

	ロバスト混合モデリング	ロバスト潜在プロファイル分析
分野	統計学	統計学
系統	Latent structure	Latent structure
提唱年	2000–2008	2010s
提唱者	Peel & McLachlan (t-mixture); Garcia-Escudero et al. (trimming framework)	Building on Vermunt & Magidson (2002); robust extensions developed through contaminated normal mixture literature (Punzo & McNicholas, 2010s)
種類	Latent-class probabilistic clustering with outlier protection	Person-centered mixture model with robust estimation
原典	Garcia-Escudero, L. A., Gordaliza, A., Matran, C. & Mayo-Iscar, A. (2008). A general trimming approach to robust cluster analysis. Annals of Statistics, 36(3), 1324–1345.	Vermunt, J. K. & Magidson, J. (2002). Latent class cluster analysis. In J. A. Hagenaars & A. L. McCutcheon (Eds.), Applied Latent Class Analysis (pp. 89–106). Cambridge University Press. ISBN: 978-0521594035
別名	robust mixture model, robust GMM, outlier-robust mixture model, trimmed mixture model	RLPA, robust LPA, robust mixture model for continuous indicators, outlier-robust latent profile analysis
関連	5	5
概要	Robust mixture modeling fits finite mixture models — probabilistic clustering methods that assume data arise from a blend of underlying subpopulations — using component distributions or estimation strategies designed to be insensitive to outliers and heavy-tailed noise. The two dominant approaches replace Gaussian components with heavier-tailed distributions such as the multivariate t, or trim a fixed proportion of the most extreme observations before fitting.	Robust latent profile analysis identifies latent subgroups of individuals based on their continuous multivariate indicators while protecting parameter estimates from distortion by outliers or atypical observations. It extends standard latent profile analysis by replacing the Gaussian component densities with heavier-tailed or contaminated-normal alternatives that down-weight extreme cases during estimation.