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| Εισαγωγή στην Ανάλυση Ισχυρών Λανθανόντων Προφίλ× | Ευρωστές Μοντελοποιήσεις Μιγμάτων× | |
|---|---|---|
| Πεδίο | Στατιστική | Στατιστική |
| Οικογένεια | Latent structure | Latent structure |
| Έτος προέλευσης≠ | 2010s | 2000–2008 |
| Δημιουργός≠ | Building on Vermunt & Magidson (2002); robust extensions developed through contaminated normal mixture literature (Punzo & McNicholas, 2010s) | Peel & McLachlan (t-mixture); Garcia-Escudero et al. (trimming framework) |
| Τύπος≠ | Person-centered mixture model with robust estimation | Latent-class probabilistic clustering with outlier protection |
| Θεμελιώδης πηγή≠ | 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 | 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. DOI ↗ |
| Εναλλακτικές ονομασίες | RLPA, robust LPA, robust mixture model for continuous indicators, outlier-robust latent profile analysis | robust mixture model, robust GMM, outlier-robust mixture model, trimmed mixture model |
| Συναφείς | 5 | 5 |
| Σύνοψη≠ | 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. | 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. |
| ScholarGateΣύνολο δεδομένων ↗ |
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