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Social Networks

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Newest incarnation of social networking sites attempt to subsume: ... File sharing on social networks means collaborative filtering of bad files ... – PowerPoint PPT presentation

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Title: Social Networks


1
Social Networks
  • Systems Reading Group
  • Jay Chen
  • 10/25/06

2
Social Relationships
  • Psychologists have studied how communication
    context changes social relationships
  • Social relationships maintained through different
    media grow at different rates and to different
    depths
  • No clear consensus as to whether one modality is
    better than another (email vs phone etc)
  • However, they do know of some correlations

3
Ability to Build and Maintain Relationships
Related to
  • Cost
  • Geographic distance
  • Time spent
  • Synchrony vs. asynchrony
  • Awareness
  • Media richness

4
Why the Internet is an Interesting Medium for
Social Relationships
  • 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
  • Superficialities aside people focus on
    communicating their selves

5
Social Networks
  • Not a new concept, (6 degrees of separation)
  • People typically maintain 10-20 close
    relationships among thousands of acquaintances
  • Metcalfs Law value of a network increases n2
    to of participants
  • Not exactly, but in theory.
  • Dependent upon interaction model

6
Social Networks on the Internet
  • Not a new concept
  • BBS/Usenet
  • Web/Email
  • Chat / Video conferencing
  • What is new are
  • Weblogs or blogs
  • Social Networking Websites

7
Why Are Social Networks All the Buzz Now?
  • As we move forward and technology provides
    improvements in
  • Awareness You not only know who your friends
    are, but who their friends are
  • Media richness Voice, video, music
  • All of these contribute to making social networks
    online a mirror of peoples real life
    relationships
  • Growth of popular social network sites is very
    fast (Myspace 200,000 new users a day)

8
Social Network Site Hype
  • Maintain relationships with your friends
  • Form new relationships with people of similar
    interest
  • Find prospective employers/employees
  • Keep up to date on popular news or media

9
Amalgamation of Technology
  • Newest incarnation of social networking sites
    attempt to subsume
  • File sharing (photos, music, videos)
  • MySpace, Xanga, Youtube
  • Blogging / Video Blogs
  • Xanga / YouTube
  • Chat / Vchat
  • Instant Messaging (AIM/MSN)
  • Self Publishing / broadcast
  • Youtube
  • Search engines / web portals

10
File sharing
  • p2p is the newest big thing in file sharing
  • Malicious users with fake or corrupted files is a
    problem
  • Research devoted to leveraging social networks to
    do collaborative filtering on bad files
  • File sharing on social networks means
    collaborative filtering of bad files

11
Issues w/Social Networks
  • Parents Govt. banning MySpace due to the bad
    rep
  • Kids subjected to obscene or unlawful sexual
    advances
  • 98 of K-12 schools already filtering out
    Myspace
  • The popular banned sites lose visitors that move
    to the less popular ones
  • Too many choices to choose from
  • Revenue stream beyond advertisements
  • Security Privacy Issues

12
Security Privacy Issues
  • Recent malware exploiting social networks
  • Malicious Banner ads
  • Adware
  • Phishing attacks
  • Customizable scripts
  • Facebooks controversial decision to make visible
    relationship actions to entire social group
  • Everyone reading everyones shared information

13
Role of Systems Designers
  • Building these social networks faces the same
    problems we often have in building large-scale
    systems
  • Scalability
  • Security
  • Usability
  • The human factor involved means understanding a
    bit more about what people want, and how
    technology can provide these things

14
End
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