In dictionaries:
clustering algorithm
Hierarchical clustering
In data mining and statistics, hierarchical clustering (also called hierarchical cluster analysis or HCA) is a method of cluster analysis that seeks to build a hierarchy of clusters.
Fuzzy clustering
(also referred to as soft clustering or soft k-means) a form of clustering in which each data point can belong to more than one cluster.
spatial clustering
data clustering
Grouping similar data into sets.
Volatility clustering
In finance, volatility clustering refers to the observation, first noted by Mandelbrot, that "large changes tend to be followed by large changes, of either sign, and small changes tend to be followed by small changes.
Clustering illusion
(psychology) The tendency to erroneously perceive random streaks and clusters arising in small samples from random distributions as non-random.
K-means clustering
K-medians clustering
Spectral clustering
In multivariate statistics, spectral clustering techniques make use of the spectrum (eigenvalues) of the similarity matrix of the data to perform dimensionality reduction before clustering in fewer dimensions.
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