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Chapter 6: Similarities, Neighbors, and Clusters (Nearest Neighbor (Issues…

- - - - Operating on the neighbors' known target values
  - - - lack of explicit, interpretable model
      - Justification adequacy
      - If model intelligibility is important this method should be avoided
    - - Numeric attributes may have vastly different ranges
      - Too many attributes- many irrelevant
      - Curse of Dimensionality
        
        too many irrelevant attributes
      - Feature selection
        
        Determining features to be included
    - - No effort expended in creating a model
      - expensive
      - time consuming