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Chp1 Intro to Datamining (Certain realities (After model deployment, new…

- - - - k-nearest neighbor
      - decision trees
      - neural networks
  - - - Target marketing niche product for small business that does not have large marketing budget
      - For accounting purposes, to segment financial behavior into benign and suspicious categories
      - Use as dimensionality-reduction tool for data set having several hundred inputs
      - For gene expression clustering, where very large quantities of genes may exhibit similar behavior
      - As preliminary step in data mining
      - Resulting clusters used as input to different technique downstream, such as neural networks
  - - - Thursday night 200 of 1,000 customers bought diapers, and of those buying diapers, 50 purchased beer
      - Association Rule: “IF buy diapers, THEN buy beer”
      - Support = 200/1,000 = 20%, and confidence = 50/200 = 25%