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Week 08 Classification evaluation in d Rapidminer Dataset: risk Dataset: risk week 09 – datasets.xls Algorithms: classification Algorithms: classification 1

Week 08 Classification evaluation in Rapidminerec/files_1011/week 09 - lab.pdf · 2010. 11. 24. · Week 08 Classification evaluation in Rapidminer Dataset: risk week 09 – datasets.xls

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  • Week 08Classification evaluation in 

    dRapidminer

    Dataset: risk Dataset:  risk

    week 09 – datasets.xls

    Algorithms: classification Algorithms:  classification

    1

  • Decision tree for the risk dataset (same as in the last class).

    2

  • 3

  • Computing the cost of the solution.

    4

  • 5

  • Changing the cost matrix values.Changing the cost matrix values.

    6

  • Computing the cost of the solution while giving different costs to different errors.

    Confusion matrix is the same...

    but the overall cost is notbut the overall cost is not.

    7

  • Using the cost matrix when building the model 

    8

  • 9

  • creating a lift chart

    10

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  • lift chart for two models

    12

  • Lift chart for the naive Bayes model

    13

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