1. Opening Weka Select Weka from Start Menu Select Explorer Fall 2003
Data Mining

2. Opening a File
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Data Mining

3. Fall 2003
Data Mining

4. Weka Main Components
Fall 2003
Data Mining

5. Many missing values (16%) No examples of one value
Summary Statistics
Possible Problems:
Many missing values (16%)
No examples of one value
Select an attribute
Visualization
Appears to be a good predictor of the class
Fall 2003
Data Mining

6. Fall 2003
Data Mining

7. Weka Filters Tune parameters Apply the Filter Select Filter Fall 2003
Data Mining

8. Select a classifier
Tune the parameters
Fall 2003
Data Mining

9. Classifiers organized according to type
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Data Mining

10. Fall 2003
Data Mining

11. Select class attribute
Decide how to evaluate
Select class attribute
Apply the classifier
Fall 2003
Data Mining

12. Decision Tree
Accuracy
List of
Models
Fall 2003
Data Mining

13. Left-click on model to get Menu (save, visualize, etc)
Fall 2003
Data Mining

14. Fall 2003
Data Mining