# NPTEL Social Networks Week 4 Assignment Answers 2024

## NPTEL Social Networks Week 4 Assignment Answers 2024

1. “People tend to have links to others who are similar to them”. Identify this process that impacts the structure of Social Network.

• Social Influence
• Selection
• Betweenness
`Answer :- For Answer Click Here `

2. Given two authors are editing Wikipedia articles. Number of articles edited by both author A and author B is 10. The total number of articles edited by either of them is 18. Compute the similarity measure.

• 18/10
• 10/18
• 10/28
• 18/28
`Answer :- For Answer Click Here `

3. Dynamics of friendships formation and behaviour of people in a network is affected by

• Selection
• Social Influence
• Both Selection and Social Influence
• Neither Selection nor Social Influence
`Answer :- For Answer Click Here `

4. Suppose Hari and Joy have k common friends. Given that each common friend gives Hari and Joy an independent probability p of forming a link, what is the probability that there will exist a link between Hari and Joy?

• pk
• 1 − pk
• 1 − (1 − p)k
• pk
`Answer :- `

5. Ram and Raghu met joined a Yoga class.Their similarity measure was 0.005 at the time of joining. They became good friends on Day 3. What is the similarity measure right before they became friends?

• 0.04
• 0.004
• 1.005
• 0.005
`Answer :- `

6. Given the friendship network in a dance school, 5 girls represented by red nodes and 5 boys represented by green nodes. Find the Homophily of the network.

• 0
• 1/4
• 1/2
• 1
`Answer :- For Answer Click Here `

7. Which of the following conditions is ideal for a good community?

• ratio of intra-community edges to inter-community edge should be high
• ratio of intra-community edges to inter-community edge should be low
• ratio of intra-community edges to inter-community edge should be 1
• ratio of intra-community edges to inter-community edge should be 0
`Answer :- `

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

• Structural hole
• Focal closure
• Membership closure
`Answer :- `

9. When calculating the homophily value, what range of values is expected when the network exhibits heterogeneity?

• 0
• 1
• less than 1
• greater than 1
`Answer :- `

10. Which phenomenon is represented in region B of the given graph?

• Selection
• Social Influence
• Focal Closure
• Membership
`Answer :- For Answer Click Here `