Comparer des méthodes

	Modélisation par mélange	Analyse de regroupement
Domaine	Statistique	Statistique
Famille	Latent structure	Latent structure
Année d'origine	1894	1939–1967
Auteur d'origine	Karl Pearson	Robert C. Tryon (early development); Ward (1963) for hierarchical; MacQueen (1967) for k-means
Type	Latent variable / density estimation	Unsupervised classification / grouping
Source fondatrice	McLachlan, G. J. & Peel, D. (2000). Finite Mixture Models. Wiley-Interscience. ISBN: 978-0471006268	Everitt, B. S., Landau, S., Leese, M. & Stahl, D. (2011). Cluster Analysis (5th ed.). Wiley. ISBN: 978-0470749913
Alias	finite mixture model, mixture distribution model, FMM, model-based clustering	clustering, unsupervised classification, data clustering, numerical taxonomy
Apparentées	6	5
Résumé	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.	Cluster analysis is a family of unsupervised multivariate techniques that partition a set of objects or observations into internally homogeneous, mutually distinct groups — clusters — based on measured characteristics, without any prior knowledge of group membership. It is widely used in market segmentation, bioinformatics, psychology, and social science to reveal natural groupings in data.