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  • Social Networks | Week 4

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Social Networks | Week 4

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Course Name: Social Networks

Course Link: Click Here

These are Nptel Social Networks Week 4 Assignment 4 Answers


Q1. Identify the type of Homophily in the following Linked inn recommendation:
”People with similar interests are following —-”

a. Selection
b. Social Influence
c. Membership closure
d. Foci Closure

Answer: a. Selection


Q2. Identify the network mechanism in play for the following transformation.

image 48

a. Triadic closure
b. Focal Closure
c. Membership closure
d. Neighborhood overlap

Answer: c. Membership closure


These are Nptel Social Networks Week 4 Assignment 4 Answers


Q3. Two friends Raj and Nila have taken different courses according to their interests. Raj has completed 12 courses and Nila has completed 16 courses in all. There are 7 courses that Raj and Nila have taken up in common. What is the similarity measure for Raj and Nila?
a. 1/3
b. 7/28
c. 3
d. 28/7

Answer: b. 7/28


These are Nptel Social Networks Week 4 Assignment 4 Answers


Q4. Suppose Manisha and Simran have a common friend with an independent probability p What is the probability that they donot have k common friends?
a. p×k
b. pk
c. (1−p)k
d. (1−(1−p))k

Answer: c. (1−p)k


Q5. What are the factors that influence the dynamics of friendships formation and behaviour of people in a network?
a. Social Influence
b. Selection
c. Both Social Influence and Selection
d. Neither Social Influence nor Selection

Answer: c. Both Social Influence and Selection


Q6. In the fatman evolutionary model, what is the role of social foci?
a. Selection
b. Social Influence
c. Both Social Influence and Selection
d. Neither Social Influence nor Selection

Answer: a. Selection


These are Nptel Social Networks Week 4 Assignment 4 Answers


Q7. Compute Homophily for the given network.

image 49

a. 1
b. 3/4
c. 1/2
d. 1/4

Answer: d. 1/4


Q8. What is the relationship that exists between the probability of any two persons(A and B) being friends with respect to the number of their common friends?
a. inverse
b. linear
c. polynomial
d. exponential

Answer: b. linear


These are Nptel Social Networks Week 4 Assignment 4 Answers


Q9. A network having inter-community edge density and intra-community edge sparsity will definitely exhibit
a. Triadic closure
b. Selection
c. Homophily
d. Heterophily

Answer: d. Heterophily


Q10. Assume there are 20 participants who have just enrolled for a workshop. Which of the following closure happen in this current state?
a. Triadic closure
b. Membership closure
c. Focal closure
d. None

Answer: a. Triadic closure


These are Nptel Social Networks Week 4 Assignment 4 Answers


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These are Nptel Social Networks Week 4 Assignment 4 Answers

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These are Nptel Social Networks Week 4 Assignment 4 Answers
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