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:

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