week 09 classification evaluation in rapidminerec/files_1112/lab09-evaluation.pdf · 2011. 11....
TRANSCRIPT
Week 09
Classification evaluation in
Rapidminer
� Dataset: risk
week 09 – datasets.xls
� Algorithms: classification
1
2
Decision tree for the risk dataset
3
4
Computing the cost of the solution.
5
6
Changing the cost matrix values.
7
Computing the cost of the solution while giving different costs to different errors.
Confusion matrix is the same...
but the overall cost is not.
8
Using the cost matrix when building the model
9
10
creating a lift chart
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lift chart for two models
13
Lift chart for the naive Bayes model
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