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CS725 Assignment 3 Solution and Discussion

CS725 - Data Mining

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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:

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
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Actual	Predicted
	Yes	No
	Yes	70	30
No	40	60

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ASSIGNMENT NO:2
Course: CS302
1: Write the SOP expression for the given sum.

Sol:
A B C D E
0 0 0 0 0
0 0 0 0 1
0 0 0 1 0
0 0 0 1 1
0 0 1 0 0
0 0 1 0 1
0 0 1 1 0
0 0 1 1 1
0 1 0 0 0
0 1 0 0 1
0 1 0 1 0
0 1 0 1 1
0 1 1 0 0
0 1 1 0 1
0 1 1 1 0
0 1 1 1 1
1 0 0 0 0
1 0 0 0 1
1 0 0 1 0
1 0 0 1 1
1 0 1 0 0
1 0 1 0 1
1 0 1 1 0
1 0 1 1 1
1 1 0 0 0
1 1 0 0 1
1 1 0 1 0
1 1 0 1 1
1 1 1 0 0
1 1 1 0 1
1 1 1 1 0
1 1 1 1 1

A B C D E OUTPUT
(F)
0 0 0 0 0 0
0 0 0 0 1 0
0 0 0 1 0 1
0 0 0 1 1 0
0 0 1 0 0 1
0 0 1 0 1 0
0 0 1 1 0 1
0 0 1 1 1 0
0 1 0 0 0 1
0 1 0 0 1 0
0 1 0 1 0 1
0 1 0 1 1 0
0 1 1 0 0 1
0 1 1 0 1 0
0 1 1 1 0 1
0 1 1 1 1 0
1 0 0 0 0 1
1 0 0 0 1 0
1 0 0 1 0 1
1 0 0 1 1 0
1 0 1 0 0 1
1 0 1 0 1 0
1 0 1 1 0 1
1 0 1 1 1 0
1 1 0 0 0 1
1 1 0 0 1 0
1 1 0 1 0 1
1 1 0 1 1 0
1 1 1 0 0 1
1 1 1 0 1 0
1 1 1 1 0 1
1 1 1 1 1 0
FOR SOP WE FOCUS ON 1 VALUE.
A B C D E MINTERM
0 0 0 1 0

0 0 1 0 0

0 0 1 1 0

0 1 0 0 0

0 1 0 1 0

0 1 1 0 0

0 1 1 1 0

1 0 0 0 0

1 0 0 1 0

1 0 1 0 0

1 1 1 0 0

1 1 0 0 0

1 1 0 1 0

1 1 1 0 0

1 1 1 1 1 ABCDE

SOP EXPRESSION:
SUM OF PRODUCT EXPRESSION

2: Find Prime Implicant of minterm using QuineMcculsky method.

Step-1
00010 2
00100 4
01000 8
10000 16
00110 6
01010 10
01100 12
10010 18
10100 20
11000 24
01110 14
10110 22
11010 26
11100 28
11110 30

Step-2
2,6(00-10) 2,10(0-010) 2,18(-0010)
4,12(0-100) 4,6(001-0) 4,20(-0100)
8,10(010-0) 8,24(-1000)
16,18(100-0) 16,20(10-00) 16,24(10-00)
6,14(0-110) 6,22(-0110)
10,14(01-10)10,26(-1010)
12,14(011-0) 12,28(-1100)
18,26(1-010) 18,22(10-10)
20,22(101-0) 20,22(1-100)
24,26(110-0) 24,28(11-00)
14,30(-1110) 22,30(1-110) 26,30(11-10) 28,30(111-0)
Step-3
2,6,18,22(-0-10) 2,6,10,14( 0–10)2,10,18,26(–010)2,18,6,22(-0-10)
2,18,10,26(–010)4,12,6,14(0-1-0) 4,6,12,14 (0-1-0)
4,6,20,22(-01-0)4,20,6,22(-01-0) 4,20,12,28(–100) 8,10,12,14(01–0) 8,24,10,26(-10-0) 8,24,12,28 (-1-00)
6,14,22,30 (–110) 6,22,14,30(–110) 10,14,26,30(-1-10) 10,26,14,30(-1-10) 12,14,28,30(-11-0) 12,14,28,30(-11-0)
18,26,22,30(1–10) 18,22,26,30(1–10) 20,22,28,30(1-1-0)
20,22,22,30(1-1-0) 24,26,28,30(11–0) 24,28,26,30(11–0)
Step-3
2,6,18,22(-0-10) 4,6,20,22(-01-0)
2,18,10,22(-0-10) 4,20,6,22(-01-0)
2,10,18,26(–010) 4,12,6,14(0-1-0)
2,18,6,22(–010) 4,6,12,14 (0-1-0)
4,20,12,28(–100) 10,14,26,30(-1-10)
6,14,22,30 (–110) 10,26,14,30(-1-10)
12,14,28,30(-11-0) 18,26,22,30(1–10)
12,14,28,30(-11-0) 18,22,26,30(1–10)
20,22,28,30(1-1-0) 24,26,28,30(11–0)
20,22,22,30(1-1-0) 24,28,26,30(11–0)
6,22,14,30(–110)
8,10,12,14(01–0)
8,24,12,28 (-1-00)
8,24,10,26(-10-0)
Step-4
2,6,8,22(-0-10) 4,6,20,22(-01-0)
2,10,18,26(–010) 4,12,6,14(0-1-0)
4,20,12,28(–100) 10,14,26,30(-1-10)
12,14,28,30(-11-0) 18,26,22,30(1–10)
20,22,28,30(1-1-0) 24,26,28,30(11–0)
6,22,14,30(–110) 8,10,12,14(01–0)
8,24,12,28 (-1-00) 8,24,10,26(-10-0)
These are the prime implicates
cs302-assign 2.docx
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Solution:
Paragraph no. 1 is bias-free. Paragraph no. 2 has age bias. Paragraph no. 3 has disability bias. Paragraph no. 4 is bias-free. Paragraph no. 5 has gender bias.
Q2. People in the world are not exactly alike. Cultures or countries are not the same. These differences, however, can cause problems in conveying your meanings. Each person’s mind is different from others. As a result, message sender’s meanings and the receiver’s response are affected by many factors. Keeping this in mind read the given descriptions and identify the correct type of barrier from the given choices. (5*2=10 Marks)

The meaning of words, signs and symbols might be different from one person to another and the same word might have hundreds of meanings. So, when a message is sent by a sender to a receiver, it might be interpreted wrongly in a communication process causing misunderstandings between them.

Semantic barrier

Psychological barrier

Emotional barrier

Perception barrier

This is the type of barrier in which environmental and natural conditions act as a hindrance in communication in sending message from sender to receiver. Organizational environment and interior workspace design problems, technological problems and noise are the parts of these barriers.

Attitude barrier

Emotional barrier

Physical barrier

Perception barrier

The influence of mental state of the communicators creates an obstacle for effective communication. Communication is highly influenced by the mental condition that the communicators are in and is disturbed by mental disturbance. If the people involved in communication are not emotionally well, they won’t be able to communicate properly.

Psychological barrier

Emotional barrier

Attitude barrier

Perception barrier

These types of barriers are mental walls that keep you away from openly communicating your thoughts and feelings to others. They prevent you from being yourself and living your life to the fullest. Individuals with such barriers tend to be extremely reserved, cautious, and insecure.

Emotional barrier

Psychological barrier

Attitude barrier

Perception barrier

One of the most obvious barriers in communication would be the ethnic, religious and social differences that may exist in trying to communicate. If one doesn’t know much about a person’s society with whom one is trying to communicate, it will create a barrier because one does not know how to start or end a conversation.

Perception barrier

Cultural barrier

Attitude barrier

Experiential barrier
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@Arbaz-Kaleem Solution idea posted

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