방법 비교

	혼합 모형화	군집 분석
분야	통계학	통계학
계열	Latent structure	Latent structure
기원 연도	1894	1939–1967
창시자	Karl Pearson	Robert C. Tryon (early development); Ward (1963) for hierarchical; MacQueen (1967) for k-means
유형	Latent variable / density estimation	Unsupervised classification / grouping
원전	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
별칭	finite mixture model, mixture distribution model, FMM, model-based clustering	clustering, unsupervised classification, data clustering, numerical taxonomy
관련	6	5
요약	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.