Computer Science, asked by rajeshrishelke78, 11 months ago

Given the following training set for classification problem into two classes “fraud” and “normal”. There are two attributes A1 and A2 taking values 0 or 1. Splitting on attribute A2 in the root leads to an entropy reduction of?

A1

A2

Class

1

0

fraud

1

1

fraud

1

1

fraud

1

0

normal

1

1

fraud

0

0

normal

0

0

normal

0

0

normal

1

1

normal

1

0

normal


A. –log(4/10)-log(6/10)
B. –(4/10)xlog(4/10)-(6/10)xlog(6/10) + (1/4)xlog(1/4) + (3/7)xlog(3/7)
C. –(4/10)xlog(4/10)-(6/10)xlog(6/10) + (3/4)xlog(3/4) + (1/4)xlog(1/4) + (1/6)xlog(1/6) +(5/6)xlog(5/6)
D. 1

Answers

Answered by JanisDahiya
1

Answer:

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Explanation:

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