Fall 2019 Data Mining Virtual university of Pakistan
Data Mining (CS725)
Assignment # 01 Total Points: 50
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Due Date: January 16th, 2020
1

Fall 2019 Data Mining
Virtual university of Pakistan
Question# 01
Consider the following dataset mentioned below:
(10pts)

Actual Predicted
Yes No
Yes 70 30
No 40 60

Now calculate the following:
i. Sensitivity
ii. Specificity
iii. Error rate
Question# 02
(40pts)
Consider the following class-labeled training tuples from the weather forecast dataset mentioned below:
6b04fe2a-ba86-4ad9-a428-96fc0eaacd25-image.png

a) Calculate the Gain for every mentioned attribute and identify which attribute will be chosen for splitting?
b) Compute the Gini index for the overall collection of training dataset