השוואת שיטות

	אשכול היררכי בייסיאני (BHC)	מידול תערובת
תחום	סטטיסטיקה	סטטיסטיקה
משפחה	Latent structure	Latent structure
שנת המקור	2005	1894
הוגה השיטה	Katherine Heller & Zoubin Ghahramani	Karl Pearson
סוג	Probabilistic clustering / model-based hierarchical agglomeration	Latent variable / density estimation
מקור מכונן	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.	McLachlan, G. J. & Peel, D. (2000). Finite Mixture Models. Wiley-Interscience. ISBN: 978-0471006268
כינויים	BHC, probabilistic hierarchical clustering, Bayesian agglomerative clustering	finite mixture model, mixture distribution model, FMM, model-based clustering
קשורות	6	6
תקציר	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.	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.