Σύγκριση μεθόδων

	Διαδικτυακός K-means	DBSCAN
Πεδίο	Μηχανική Μάθηση	Μηχανική Μάθηση
Οικογένεια	Machine learning	Machine learning
Έτος προέλευσης	1967 (online update rule); 2010 (mini-batch variant)	1996
Δημιουργός	MacQueen, J. (batch); Sculley, D. (mini-batch web-scale variant)	Ester, M., Kriegel, H.-P., Sander, J. & Xu, X.
Τύπος	Unsupervised clustering (online/streaming)	Density-based clustering algorithm
Θεμελιώδης πηγή	MacQueen, J. (1967). Some methods for classification and analysis of multivariate observations. In Proceedings of the Fifth Berkeley Symposium on Mathematical Statistics and Probability, Vol. 1, pp. 281–297. University of California Press.	Ester, M., Kriegel, H.-P., Sander, J. & Xu, X. (1996). A Density-Based Algorithm for Discovering Clusters in Large Spatial Databases with Noise. Proceedings of the 2nd KDD, 226–231.
Εναλλακτικές ονομασίες	sequential k-means, streaming k-means, incremental k-means, online clustering	DBSCAN Kümeleme, density-based clustering, density-based spatial clustering
Συναφείς	4	3
Σύνοψη	Online K-means is a streaming variant of the classical K-means algorithm that updates cluster centroids one observation at a time — or in small mini-batches — without storing the entire dataset in memory. It is particularly suited to large-scale, real-time, or continuously arriving data where batch recomputation would be too slow or impractical.	DBSCAN is a density-based clustering algorithm, introduced by Ester, Kriegel, Sander and Xu in 1996, that groups together points lying in dense regions and flags points in sparse regions as noise. It is effective on noisy data and on clusters of irregular, non-spherical shapes.