Methoden vergleichen

	Robustes Gaußsches Mischmodell	K-means Clustering
Fachgebiet	Maschinelles Lernen	Maschinelles Lernen
Familie	Machine learning	Machine learning
Entstehungsjahr	2000	1967 (formalized 1982)
Urheber	Peel, D. & McLachlan, G. J.	MacQueen, J. B.; Lloyd, S. P.
Typ	Probabilistic clustering / density estimation	Partitional clustering
Wegweisende Quelle	Peel, D. & McLachlan, G. J. (2000). Robust mixture modelling using the t distribution. Statistics and Computing, 10(4), 339–348.	Lloyd, S. P. (1982). Least squares quantization in PCM. IEEE Transactions on Information Theory, 28(2), 129–137.
Aliasnamen	Robust GMM, mixture of t-distributions, trimmed GMM, heavy-tailed mixture model	k-means clustering, Lloyd's algorithm, k-means partitioning, hard k-means
Verwandt	5	4
Zusammenfassung	Robust Gaussian Mixture Model replaces the standard Gaussian components with heavier-tailed distributions — most commonly Student's t-distributions — or incorporates trimming and down-weighting of outliers within the EM framework. The result is a probabilistic clustering and density-estimation method that assigns genuinely anomalous points less influence on component parameters, preventing outliers from distorting cluster shapes or positions.	K-means is a classic unsupervised partitional clustering algorithm that divides a dataset into K non-overlapping groups by iteratively assigning each observation to its nearest centroid and updating centroids as the mean of their assigned points. It is one of the most widely used exploratory tools in machine learning and data analysis.