Compară metode

	Analiza Cluster	Scalare Multidimensională (MDS)
Domeniu	Statistică	Statistică
Familie	Latent structure	Latent structure
Anul apariției	1939–1967	1952–1964
Autorul original	Robert C. Tryon (early development); Ward (1963) for hierarchical; MacQueen (1967) for k-means	Warren S. Torgerson (metric MDS, 1952); Joseph B. Kruskal (non-metric MDS, 1964)
Tip	Unsupervised classification / grouping	Dimensionality reduction / visualization
Sursa seminală	Everitt, B. S., Landau, S., Leese, M. & Stahl, D. (2011). Cluster Analysis (5th ed.). Wiley. ISBN: 978-0470749913	Kruskal, J. B. (1964). Multidimensional scaling by optimizing goodness of fit to a nonmetric hypothesis. Psychometrika, 29(1), 1–27.
Denumiri alternative	clustering, unsupervised classification, data clustering, numerical taxonomy	MDS, metric MDS, non-metric MDS, proximity scaling
Înrudite	5	5
Rezumat	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.	Multidimensional scaling maps objects described only by pairwise similarities or dissimilarities into a low-dimensional geometric space so that distances in that space reflect the original proximity structure as faithfully as possible. It is widely used to visualize the hidden structure of psychological, social, and behavioral data.