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| Analiza latentnih klasa (LCA)× | Modeliranje smjesa× | |
|---|---|---|
| Područje | Statistika | Statistika |
| Obitelj | Latent structure | Latent structure |
| Godina nastanka≠ | 1950s–1968 | 1894 |
| Tvorac≠ | Paul F. Lazarsfeld | Karl Pearson |
| Vrsta≠ | Latent variable / person-centered classification | Latent variable / density estimation |
| Temeljni izvor≠ | Goodman, L. A. (1974). Exploratory latent structure analysis using both identifiable and unidentifiable models. Biometrika, 61(2), 215–231. DOI ↗ | McLachlan, G. J. & Peel, D. (2000). Finite Mixture Models. Wiley-Interscience. ISBN: 978-0471006268 |
| Drugi nazivi | LCA, latent class model, latent categorical analysis, finite mixture of multinomials | finite mixture model, mixture distribution model, FMM, model-based clustering |
| Srodne | 6 | 6 |
| Sažetak≠ | Latent class analysis identifies unobserved subgroups — latent classes — within a population by finding patterns of responses across a set of categorical observed indicators. It is the categorical-variable counterpart of cluster analysis, but grounded in an explicit probabilistic model, and is widely used in social, health, and behavioral sciences to discover typologies in survey or diagnostic data. | Mixture modeling assumes that a population is composed of K unobserved subpopulations, each described by its own probability distribution. The observed data are treated as draws from a weighted combination of these component distributions. It provides a principled, model-based alternative to ad hoc clustering and supports formal comparison of solutions with different numbers of components. |
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