手法を比較

	ロバスト混合モデリング	ロバスト・クラスター分析（TCLUST）
分野	統計学	統計学
系統	Latent structure	Regression model
提唱年	2000–2008	2008
提唱者	Peel & McLachlan (t-mixture); Garcia-Escudero et al. (trimming framework)	García-Escudero, Gordaliza, Matrán & Mayo-Iscar (TCLUST)
種類	Latent-class probabilistic clustering with outlier protection	Robust model-based clustering
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.	García-Escudero, L. A., Gordaliza, A., Matrán, C., & Mayo-Iscar, A. (2008). A General Trimming Approach to Robust Cluster Analysis. The Annals of Statistics, 36(3), 1324-1345.
別名	robust mixture model, robust GMM, outlier-robust mixture model, trimmed mixture model	TCLUST, trimmed clustering, robust clustering, Robust Küme Analizi (TCLUST)
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 Cluster Analysis is a trimmed model-based clustering method, introduced by García-Escudero and colleagues in 2008, that partitions continuous multivariate data into clusters while resisting the influence of outliers and noise. By setting aside a fraction of the most discordant observations, it keeps the recovered cluster structure from being contaminated by stray points.