Social Networks | Week 4

Social Networks Week 4 Assignment 4 Answers

Course Link: Social Networks | Week 4

Q1. Two people meet at a Health Club and then became friends with each other this represents
Triadic Closure
Membership closure
Focal closure
selection closure

Q2. Similarity measure can be defined as
Total number of work done by number of work in common
Number of work they do in common by Total Number of work done by both
Total number of friends by number of friends in common
Number of friends in common by Total Number of friends

Q3. Social affiliation network is
Complete and bipartite
Complete and not bipartite
Bipartite and not Complete
Neither complete nor Bipartite

Q4. In general, when we calculate the value for homophily it represents value between 0 to 1, what value will we get if it shows heterogeneity?
0
1
< 1
> 1

Q5. It is the tendency in which people make friends with similar interests i.e people select other people having similar habits or interests.
Homophily
Heterogeneity
Social Influence
Selection

Q6. If suppose A and B have 10 friends in common, and there is scenario that each common friend gives A and B an independent probability of 0.08 of forming a link. What is the probability that there exist a link between A and B?
1 − (0.92)¹⁰
1 − (0.08)¹⁰
0.9210
0.0810

Q7. Given a complete graph with 10 vertices the total number of possible triangle for the given graph will be
10000
30
300
120

Q8. Which situation doesn’t occur when homophily in a network of 2 Classes is greater than 0.5?
Across edges are low in proportion
People tend to make friends within their group
The probability of selecting across edge is low
People make friends outside the group

Q9. Which phenomenon is represented in region A of the graph in Figure 7 below?
Social Influence
Foci closure
Membership closure
Selection

Q10. Which phenomenon is represented in region B of the graph in Figure 7 below?
Social Influence
Foci closure
Membership closure
Selection