Social Networking

Question 1

Nodes/links/colours of a social network group.

Answer 1

Nodes/Vertices: People
Links/Edges: relationships
Colours: groups

Question 2

Network Centric Societies

Answer 2

Most of one’s network contacts don’t know each other. Most nodes have a small number of connections. Few nodes have large number of connections

Question 3

Pareto Principle

Answer 3

80/20 Rule:
80% of your likes/shares come from 20% of your social network.
(A few have an outsized effect in most context on social media)

Question 4

Friends of Friends’ Friends

Answer 4

1/3 as much influence as people known directly

Question 5

Social Contagion

Answer 5

Spread of something through large crowds (networks)

Question 6

SNA

Answer 6

Social Network Analysis: Mathematical analysis to understand relationships in social networks.
Allows to map social network on huge scales, and gain insite into how people behave.

Question 7

SNA Concept: Degree

Answer 7

Number of edges (relationships)

Question 8

SNA Concept: Ego Network

Answer 8

Network with “you” in centre

Question 9

SNA Concept: Centrality

Answer 9

How well the node interconnections people in different parts of the networks

Question 10

SNA Concept: Bridge

Answer 10

person who could link between two separate networks

Question 11

Example of SNA

Answer 11

How social networks could predict epidemics

Question 12

The Friendship paradox:

Answer 12

friends of randomly chosen people have higher degree and more central than the random person.