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© 2013 ExcelR Solutions. All Rights Reserved Data Mining - Supervised Decision Tree & Random Forest.

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Presentation on theme: "© 2013 ExcelR Solutions. All Rights Reserved Data Mining - Supervised Decision Tree & Random Forest."— Presentation transcript:

1 © 2013 ExcelR Solutions. All Rights Reserved Data Mining - Supervised Decision Tree & Random Forest

2 © 2013 ExcelR Solutions. All Rights Reserved Machine Learning is ubiquitous

3 © 2013 ExcelR Solutions. All Rights Reserved What are Decision trees?

4 © 2013 ExcelR Solutions. All Rights Reserved How to built decision trees?

5 © 2013 ExcelR Solutions. All Rights Reserved Decision trees - Example

6 © 2013 ExcelR Solutions. All Rights Reserved Algorithm for Decision Tree Induction

7 © 2013 ExcelR Solutions. All Rights Reserved Decision Tree Examples

8 © 2013 ExcelR Solutions. All Rights Reserved Decision Tree 1, Root: Students

9 © 2013 ExcelR Solutions. All Rights Reserved Decision Tree 1, Root: Students

10 © 2013 ExcelR Solutions. All Rights Reserved Decision Tree 1, Root: Students

11 © 2013 ExcelR Solutions. All Rights Reserved Decision Tree 1, Root: Students

12 © 2013 ExcelR Solutions. All Rights Reserved Decision Tree 1, Root: Students

13 © 2013 ExcelR Solutions. All Rights Reserved Decision Tree 1, Root: Students

14 © 2013 ExcelR Solutions. All Rights Reserved Decision Tree 1, Root: Student

15 © 2013 ExcelR Solutions. All Rights Reserved Decision Tree 2, Root: Income

16 © 2013 ExcelR Solutions. All Rights Reserved Decision Tree 2, Root: Income

17 © 2013 ExcelR Solutions. All Rights Reserved Decision Tree 2, Root: Income

18 © 2013 ExcelR Solutions. All Rights Reserved Decision Tree 2, Root: Income

19 © 2013 ExcelR Solutions. All Rights Reserved Decision Tree 2, Root: Income

20 © 2013 ExcelR Solutions. All Rights Reserved Decision Tree 2, Root: Income

21 © 2013 ExcelR Solutions. All Rights Reserved Decision Tree 2, Root: Income

22 © 2013 ExcelR Solutions. All Rights Reserved Greedy Approach and Entropy

23 © 2013 ExcelR Solutions. All Rights Reserved Entropy(Information Theory)

24 © 2013 ExcelR Solutions. All Rights Reserved Entropy(Information Theory)

25 © 2013 ExcelR Solutions. All Rights Reserved Information Gain: Attribute Selection Measure

26 © 2013 ExcelR Solutions. All Rights Reserved


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