NPTEL Social Networks Week 4 Assignment Answers 2022
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NPTEL Social Networks Assignment
ABOUT THE COURSE :
The world has become highly interconnected and hence more complex than ever before. We are surrounded by a multitude of networks in our daily life, for example, friendship networks, online social networks, world wide web, road networks etc. All these networks are today available online in the form of graphs which hold a whole lot of hidden information. They encompass surprising secrets which have been time and again revealed with the help of tools like graph theory, sociology, game theory etc. The study of these graphs and revelation of their properties with these tools have been termed as Social Network Analysis.
Next Week Assignment Answers
This course can have Associate in Nursing unproctored programming communication conjointly excluding the Proctored communication, please check announcement section for date and time. The programming communication can have a weightage of twenty fifth towards the ultimate score.
- Assignment score = 25% of average of best 8 assignments out of the total 12 assignments given in the course.
- ( All assignments in a particular week will be counted towards final scoring – quizzes and programming assignments).
- Unproctored programming exam score = 25% of the average scores obtained as part of Unproctored programming exam – out of 100
- Proctored Exam score =50% of the proctored certification exam score out of 100
UNPROCTORED PROGRAMMING EXAM SCORE >=10/25 AND PROCTORED EXAM SCORE >= 20/50.
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Q1. If two people in a social network have a friend in common, then there is an increased likelihood that they will become friends themselves at some point in the future.
The above principle is referred as
a) Triadic closure
b) Foci closure
c) Membership closure
d) None of the above
SHOW ANSWER
Answer: a)
Q2. Two friends Simran and Soujanya like different set of food items. The set of food items Simran and Soujanya like is denoted by Si and So, respectively. Si has 17 elements whereas So has 21 elements and there are 12 items which are liked by both Simran and Soujanya (Si∩So = 12). What is the similarity measure of Simran and Soujanya, with respect to food items.
a) 12/17
b) 12/21
c) 6/19
d) 6/13
SHOW ANSWER
Answer: d)
Q3. Among the given two networks below, which network shows the better evidence of Homophily? (Nodes are divided into two types-represented by different colors)
a) Network A
b) Network B
c) Both exhibit equally
d) Can’t say
SHOW ANSWER
Answer: b)
Q4. Which phenomenon best describes the network evolution in Figure 2?
a) Homophily
b) Triadic Closure
c) Foci closure
d) Membership closure
SHOW ANSWER
Answer: c)
Q5. Dynamics of friendships formation and behaviour of people in a network is
a) Impacted by neither – selection and social influence.
b) Impacted by both, selection as well as social influence.
c) Impacted by selection but not social influence.
d) Impacted by social influence but not selection.
SHOW ANSWER
Answer: b)
Q6. Consider figures A, B and C in Figure 3 and choose the right kind of closure they represent (Please note that the solid line represents the existing friendship and the dotted line represents the new friendship.):
a) A: Triadic closure, B: Membership closure, C: Focal closure
b) A: Membership closure, B: Triadic closure, C: Focal closure
c) A: Focal closure, B: Triadic closure, C: Membership closure
d) A: Focal closure, B: Membership closure, C: Triadic closure
SHOW ANSWER
Answer: d)
Q7. Homophily refers to the friendship between people
a) who have a common friend
b) who have same ethnicity
c) who are similar to each other
d) who are dissimilar to each other
SHOW ANSWER
Answer: c)
Q8. Suppose Monica and Chandler have kk common friends. Given that each common friend gives Monica and Chandler an independent probability pp of forming a link, what is the probability that there will exist a link between Monica and Chandler?
a) pk
b) 1−(1−p)×k
c) 1−(1−p)k
d) pk
SHOW ANSWER
Answer: c)
Q9. Let G be a complete graph with n nodes. The total number of triangles possible in G is:
a) n3
b) n(n−1)(n−2)/6
c) 3n
d) None of the above
SHOW ANSWER
Answer: b)
Q10. What will the output of the following two variables respectively (written in Python3):
A = [1, 2, 3, 4] + [3, 4, 5, 6]
S = [1, 2, 3, 4] – [3, 4, 5, 6]
a) [1, 2, 3, 4, 5, 6], [1, 2, 5, 6]
b) [4, 6, 8, 10], [-2, -2, -2, -2]
c) 28, -8
d) [1, 2, 3, 4, 3, 4, 5, 6], TypeError:unsupported operand type
SHOW ANSWER
Answer: d)
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