"Covariance matrix"@en . "Przemys\u0142aw Spurek" . "Clusters splitting"@en . "cacb1f3a42cc825f555cb08d7f9c16fd" . "K-means"@en . "Electron microscopy"@en . "Gaussian filter"@en . . "Lossy compression"@en . "Image compression"@en . "Spurek" . "Projective clustering"@en . "PCA"@en . . "Mathematical morphology"@en . "Przemys\u0142aw" . "Karhunen-Lo\u00E9ve Transform"@en . "Clusters merging"@en . "Cross entropy clustering"@en . . "Subspaces clustering"@en .