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Representing Features

  • Similarity between tuples t 1 and t 2 w.r.t. categorical feature f
    • Cosine similarity between vectors f ( t 1) and f ( t 2)


  • Most important information of a feature f is how f groups tuples into clusters
  • f is represented by similarities between every pair of tuples indicated by f
  • The horizontal axes are the tuple indices, and the vertical axis is the similarity
  • This can be considered as a vector of N x N dimensions  

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