Compara mètodes

	Anàlisi robusta de classes latents	Modelatge robust de barreges
Camp	Estadística	Estadística
Família	Latent structure	Latent structure
Any d'origen	2000s	2000–2008
Autor original	Building on Hennig (2004) and Vermunt & Magidson (2004)	Peel & McLachlan (t-mixture); Garcia-Escudero et al. (trimming framework)
Tipus	Robust latent variable / mixture model	Latent-class probabilistic clustering with outlier protection
Font seminal	Hennig, C. (2004). Breakdown points for maximum likelihood estimators of location-scale mixtures. Annals of Statistics, 32(4), 1313–1340.	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.
Àlies	robust LCA, outlier-resistant latent class analysis, trimmed-likelihood latent class analysis	robust mixture model, robust GMM, outlier-robust mixture model, trimmed mixture model
Relacionats	6	5
Resum	Robust latent class analysis (robust LCA) extends the standard latent class model by incorporating outlier-resistant estimation techniques — such as trimmed likelihood, M-estimation, or downweighting — so that atypical response patterns do not distort the recovered class structure or class membership probabilities.	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.