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CLARA (Clustering Large Applications) (1990)

  • CLARA (Kaufmann and Rousseeuw in 1990)
    • Built in statistical analysis packages, such as SPlus
    • It draws multiple samples of the data set, applies PAM on each sample, and gives the best clustering as the output
  • Strength: deals with larger data sets than PAM
  • Weakness:
    • Efficiency depends on the sample size
    • A good clustering based on samples will not necessarily represent a good clustering of the whole data set if the sample is biased

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