Σύγκριση μεθόδων

	Δείκτης Calinski-Harabasz	Δείκτης Davies-Bouldin
Πεδίο	Αξιολόγηση Μοντέλων	Αξιολόγηση Μοντέλων
Οικογένεια	MCDM	MCDM
Έτος προέλευσης	1974	1979
Δημιουργός	Tadeusz Calinski, Jerzy Harabasz	David L. Davies, Donald W. Bouldin
Τύπος	Cluster quality metric	Cluster quality metric
Θεμελιώδης πηγή	Calinski, T., & Harabasz, J. (1974). A dendrite method for cluster analysis. Communications in Statistics, 3(1), 1-27.	Davies, D. L., & Bouldin, D. W. (1979). A cluster separation measure. IEEE Transactions on Pattern Analysis and Machine Intelligence, 1(2), 224-227.
Εναλλακτικές ονομασίες	variance ratio criterion, pseudo F-statistic, CH index	DBI, Davies Bouldin index
Συναφείς	5	5
Σύνοψη	The Calinski-Harabasz Index, also called the Variance Ratio Criterion, was introduced by Calinski and Harabasz in 1974. It is a metric that measures the ratio of between-cluster variance to within-cluster variance, adjusted for the number of clusters and data points. Higher values indicate better-separated, more compact clusters.	The Davies-Bouldin Index, introduced by Davies and Bouldin in 1979, is a metric for evaluating clustering quality based on the average similarity between each cluster and its most similar neighboring cluster. Lower values indicate better clustering, with a minimum of 0 representing perfectly separated, non-overlapping clusters.