The song was also later released as December, chord changes & melody remained identical, with lyrics re-written for the ...Twenty-fifth of December..., performed by Earth Wind & Fire, as well, on a later album.
k-means clustering is a method of vector quantization, originally from signal processing, that is popular for cluster analysis in data mining.k-means clustering aims to partition n observations into k clusters in which each observation belongs to the cluster with the nearest mean, serving as a prototype of the cluster.t was asserted in that the relaxed solution of k-means clustering, specified by the cluster indicators, is given by the PCA (principal component analysis) principal components, and the PCA subspace spanned by the principal directions is identical to the cluster centroid subspace.
  Y2K simple means year 2 thousand. y=year 2=2 k=1000 (kilo), in the metric system k is representative of 1000. for example, 1 Km is equivalent to 1000m. When we a â¦ pproached the year 2000, it was thought by many that many of the world's computers would not have the capability to switch over from 1999 to 2000.