Presented By: Sambaran Basu & Ankita Ghosh

Social NetworkING

Introduction Origin of Social Networks Social Network Analysis Types of Social Networks References

What is social network ? A social network is a social structure made of individuals (or organizations) called "nodes," which are tied (connected) by one or more specific types of interdependency, such as friendship, kinship, financial exchange, dislike or relationships of beliefs, knowledge or prestige Social networking is the grouping of individuals into specific groups, like small rural communities or a neighborhood subdivision.

Origin o oo of social s ss sites Social network sites (SNSs) such as such as Friendster, CyWorld,Facebook,whatsApp,Twitter,Line and MySpace allow individuals to present themselves, articulate their social networks, and establish or maintain connections with others. These sites can be oriented towards work-related contexts (e.g., LinkedIn.com), romantic relationship initiation (the original goal of Friendster.com), connecting those with shared interests such as music or politics (e.g., MySpace.com), or the college student population (the original incarnation of Facebook.com).

Popular s ss social networking s ss sites Personal sites-Myspace,orkut,Cyworld, Facebook Professional/work related-LinkedIn Romantic relationship initiation-friendster Microblogging-Twitter Music-last.fm Movies-flickster Photos/pictures-flickr

Why i ii internet i ii is popular m mm mean for social n nn networking The Internet is powerful because it bridges distance at a low cost When people first meet online they tend to “like” each other more Less stressful than face-to-face meeting

Social n nn network as a aa a g gg graph Nodes: A Unit That Possibly is Connected Individuals, Households, Workgroups, Organizations, States Relationships (A Specific Type of Connection) A “Role Relationship” Gives Emotional Support Links Web Page

An example of a social Network diagram. The node with the highest Betweenness centrality is marked in yellow.

Types o oo of s ss social networkers 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.

Types o oo of s ss social networkers(conti.) 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

Privacy concerns Social networking sites provide privacy options but users are generally unaware or tend to ignore such concerns Stalkers, terrorists, ill-doers, con-artists could benefit from such issues Recent scandals-England :MI-6’s director’s wife puts up photos of family on facebook. Facebook’s controversial decision to make visible relationship actions to entire social group

Security i ii issues Recent malware exploiting social networks Malicious Banner ads Adware Phishing attacks Customizable scripts

Social a aa and Psychological i ii issues Increasing relationships but decreasing intimacy

Disadvantages o oo of social n nn networks Everything that is an advantage about social networking can also be a disadvantage in that you lose your privacy - after all, you have volunteered personal information that is now online. Every site allows you to set privacy settings. These can be changed from their default settings to limit what other people can see and read about you. For example, you could set your pages to be only viewed by friends. Other parts could be made public. Other parts could be set to family only.

Disadvantages o oo of social n nn networks Some disadvantages are: You lose some privacy compared to not being on a social network · You may later regret posting pictures or comments that you thought funny at the time · Online bullying can be a problem if someone posts unkind or untrue things about you · Some people may use a fake profile - just because they say they are 15 years old does not mean that is true. Be careful when you choose to be friends with someone you have never met in real life · They can be a real distraction and time waster, some people spend many hours on social networking rather than be working or studying. For example, constantly checking their twitter feeds.

References networks.ppt release/214190cs.nyu.edu/~jchen/socialnetworks.ppt

References websites /wiki/Schedule/social-networks-for-cs.pdf?format=raw websites

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