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| Agrupament Jeràrquic Bayesà (BHC)× | Anàlisi de clústers× | |
|---|---|---|
| Camp | Estadística | Estadística |
| Família | Latent structure | Latent structure |
| Any d'origen≠ | 2005 | 1939–1967 |
| Autor original≠ | Katherine Heller & Zoubin Ghahramani | Robert C. Tryon (early development); Ward (1963) for hierarchical; MacQueen (1967) for k-means |
| Tipus≠ | Probabilistic clustering / model-based hierarchical agglomeration | Unsupervised classification / grouping |
| Font seminal≠ | Heller, K. A. & Ghahramani, Z. (2005). Bayesian hierarchical clustering. In Proceedings of the 22nd International Conference on Machine Learning (ICML 2005), pp. 297–304. ACM. DOI ↗ | Everitt, B. S., Landau, S., Leese, M. & Stahl, D. (2011). Cluster Analysis (5th ed.). Wiley. ISBN: 978-0470749913 |
| Àlies≠ | BHC, probabilistic hierarchical clustering, Bayesian agglomerative clustering | clustering, unsupervised classification, data clustering, numerical taxonomy |
| Relacionats≠ | 6 | 5 |
| Resum≠ | Bayesian hierarchical clustering is a probabilistic agglomerative algorithm that builds a tree of nested cluster merges using Bayesian model comparison at each step. Rather than minimising a geometric linkage criterion, it evaluates at every candidate merge whether the data from two clusters are better explained by a single combined model or by two separate models, yielding a statistically principled dendrogram. | 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. |
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