NPTEL Social Networks Assignment 7 Answers 2023

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NPTEL Social Networks Assignment 7 Answers 2023

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Q.1. If the payoff of playing a game and working out in the Gym is given as 0.6 and 0.4 respectively. Four of your friends decides to play and five of them decide to work out. Which one should you pick?

Playing a Game
Work out in the Gym
Data insufficient to decide

None

Q.2. Which of the following technique helps to identify the important node in the network so that the idea spreads to the entire network very fast?

Community detection
Page ranking
Viral marketing
Embeddedness

Q.3. Consider a network with adoption threshold ‘q’. A cascade cannot be complete in this network if there exists a cluster of density

less than q
less than 1-q
greater than q
greater than 1-q

Q.4. Find the density of Community c1, c2 and c3 for the following network.

5/6, 7/10, 8/10
5/30, 7/30, 8/30
4/6, 6/10, 7/10

4/30, 7/30, 8/30

Q.5. Consider the graph G in Figure 1, which one of the communities is difficult for an idea to be injected?

c1
c2
c3
None

Q.6. Any cascade on a complete network with only one seed node

will always be complete
will always be incomplete
is difficult to occur
Can’t say – insufficient information

Q.7. What is the cluster density of the each of the four node cluster?

1/3
2/3
3/4
4/3

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Q.8. Consider the network given in the following figure. Initially all the nodes in the network adopt an idea Y. Nodes A nd B adopt a new idea X in the network. The payoff for X is 4 and Y is 1. This leads to a cascade in the network. What are all the nodes that have adopted the behavior A when the cascade ends?

A, B, C
A, B, C, D
A, B, C, D, E
A, B, C, D, E, F
A, B, C, D, E, F, G, H, I, J

Q.9. Consider a network where all of its nodes have adopted an idea A. Which of the following efforts can be a valid attempt to create a complete cascade of a new idea B in such a network. Select all that is applicable.

Increase the payoff for the new idea
Identify key people in the network to inject the idea
Increase the payoff for idea A
Identify the cluster with density q

Q.10. Given the network K, assume a new idea has been adopted by the nodes, 0, 1, 2, 3, 4, and 5. How do you ensure that the new idea diffuses into the cluster marked by red dotted lines?

by diffusing it to the nodes 6 and 12
by identifying the correct set of nodes from outside the cluster.
Both
Cascade is incomplete and it cannot enter the cluster

Disclaimer: This answer is provided by us only for discussion purpose if any answer will be getting wrong don’t blame us. If any doubt or suggestions regarding any question kindly comment. The solution is provided by Chase2learn. This tutorial is only for Discussion and Learning purpose.

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.

Course Outcome:

Week 1: Introduction
Week 2: Handling Real-world Network Datasets
Week 3: Strength of Weak Ties
Week 4: Strong and Weak Relationships (Continued) & Homophily
Week 5: Homophily Continued and +Ve / -Ve Relationships
Week 6: Link Analysis
Week 7: Cascading Behaviour in Networks
Week 8: Link Analysis (Continued)
Week 9: Power Laws and Rich-Get-Richer Phenomena
Week 10: Power law (contd..) and Epidemics
Week 11: Small World Phenomenon

Week 12: Pseudocore (How to go viral on web)

CRITERIA TO GET A CERTIFICATE:

Average assignment score = 25% of average of best 8 assignments out of the total 12 assignments given in the course.
Exam score = 75% of the proctored certification exam score out of 100

Final score = Average assignment score + Exam score

YOU WILL BE ELIGIBLE FOR A CERTIFICATE ONLY IF AVERAGE ASSIGNMENT SCORE >=10/25 AND EXAM SCORE >= 30/75. If one of the 2 criteria is not met, you will not get the certificate even if the Final score >= 40/100.

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