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					Enkh-Amgalan Baatarjav
Jedsada Chartree
Thiraphat Meesumrarn
 A new way of communication
 Network size (3rd most used SNS: 55m monthly visitors)
    Growth rate (1,381% Feb 2008 - Feb 2009)
    Global
 Social networking

Answer the question of
why we use Twitter
Problem Definition
 Understanding intentions
    Intentions as an individual
    Intentions as a community
    Intentions as a network
 Understanding behavior
    When do they use Twitter?
    Where do they tweet?
 Understanding usage
    To understand in dept of how and why people use Twitter
    To explore micro-blog’s potential impacts on informal
     communication at work
Proposed Method:
User Intentions categories
• Information Sharing
• Information Seeking
• Friendship-wise

Link analysis algorithm by Jon

User intentions
• Daily Chatter
• Conversations
• Sharing information
• Reporting news
Proposed Method:
• Analyzing the overlapping
  community structure technique:
  Clique Percolation Method
• Community is union of members
  who have common K friends
• It implies that inter edge density
  is higher than intra edges density.

Key Term
Key terms are defined by frequency
 of word in each community
Proposed Method:
• Recurring patterns in word
•Trends for the terms “friends” and
“school” from Monday through
Friday in entire data corpus.

•Identifying significant terms in
each day of the week using log-
likelihood ratio
 Gathering data
    Collected data at specific times of the day
    Focused on current active users who continually post a
     series of 20 or more updates
    Used a Random walk with backtracking to collect the
How did users access Twitter
                  61% use the web
                  7,5% mobile
                  7.2% IM
                  1.2% Facebook
                  22.4% custom
Peak time
             The activity occurs
              between 10 AM and 4
             Most twitter updates
              peak around 3 PM and
              reach a low at 4 AM
             Top 3 are the USA,
              Europe, and Japan
             The Top 10 countries
              after the US account for
              50% of users in the test
              sample are: Japan,
              Germany, U.K., Brazil,
              Holland, France, Spain,
              Belgium, Canada, and
 Interview Method
   Phone Interviews (40-60 minutes each, Sep. - Dec.
 Samples
       11 participants from large IT companies
          7 men, 4 women

           Workers and managers
METHODOLOGY                                        (cont.)
 Research Questions
   Why people use Twitter?
   How Twitter is use differently from other
    communication media?
   How micro-blogging influence people at work?
 People use Twitter
   Keep in touch, gather useful information, see for helps and
    opinions, reduce emotional stress
   Frequent brief update about personal life activities, real-time
 Differences from other communication media
   Twitter technology feature service –brevity, mobility, and
    broadcast nature
Result                                                (cont.)
 Potential impacts on informal communication at
   Keeping in touch with friends and colleagues
   More understanding perspective in others’ minds
   Keeping up with what ‘s new with one another
 Three studies conducted to gain an in-dept understanding:
   Users intentions and community structure
   The ways to access and the frequency of using Twitter
   Why and how people use Twitter
   Potential impacts on informal communication at work
   Paper 1
    Title: Why we twitter: understanding microblogging usage and communities
    Authors: Akshay Java, Tim Finin, Xiaodan Song, and Belle Tseng
    Forum: In Proceedings of the 9th WebKDD and 1st SNA-KDD 2007 Workshop on Web Mining and Social Network
    Analysis (San Jose, California, August 12 - 12, 2007). WebKDD/SNA-KDD '07. ACM, New York, NY, 56-65.
    Link: 9.1348556

   Paper 2
    Title: How and why people Twitter: the role that micro-blogging plays in informal communication at work
    Authors: Dejin Zhao and Mary Beth Rosson
    Forum: In Proceedings of the ACM 2009 international Conference on Supporting Group Work (Sanibel Island,
    Florida, USA, May 10 - 13, 2009). GROUP '09. ACM, New York, NY, 243-252.

   Paper 3
    Title: A few chirps about twitter
    Authors: Balachander Krishnamurthy, Phillipa Gill, and Martin Arlitt
    Forum: In Proceedings of the First Workshop on online Social Networks (Seattle, WA, USA, August 18 - 18, 2008).
    WOSP '08. ACM, New York, NY, 19-24.

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