Social Networks. Abhimanyu Dhamija Abhishek Kumar Munish Minia Priyank Sharma. Outline. Introduction Origin of Social Networks Social Network Analysis Types of Social Networks References. What is social network?.
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Abhimanyu Dhamija Abhishek Kumar
Munish Minia Priyank Sharma
We measure Social Network in terms of:
1. Degree Centrality: The number of direct connections a node has. What really matters is where those connections lead to and how they connect the otherwise unconnected.
2. Betweenness Centrality: A node with high betweenness has great influence over what flows in the network indicating important links and single point of failure.
3. Closeness CentralityThe degree an individual is near all other individuals in a network (directly or indirectly). It reflects the ability to access information through the network .
Network diagram. The
node with the highest
is marked in yellow.
• Alpha Socialisers – (a minority) people who used sites in intense short bursts to flirt,meet new people, and be entertained.
• Attention Seekers – (some) people who craved attention and comments from others,often by posting photos and customising their profiles.
• Followers – (many) people who joined sites to keep up with what their peers were doing.
Faithfuls – (many) people who typically used social networking sites to rekindle old friendships, often from school or university.
• Functionals – (a minority) people who tended to be single-minded in using sites for a particular purpose.
Source: Ofcom Social Networking Sites research, September-October 2007