Enkh-Amgalan BaatarjavJedsada ChartreeThiraphat Meesumrarn

MotivationA new way of communicationNetwork size (3rd most used SNS: 55m monthly

visitors)Growth rate (1,381% Feb 2008 - Feb 2009)

Global Social networking

Answer the question ofwhy we use Twitter

Problem DefinitionUnderstanding intentions

Intentions as an individualIntentions as a communityIntentions as a network

Understanding behaviorWhen do they use Twitter?Where do they tweet?

Understanding usageTo understand in dept of how and why people use

TwitterTo explore micro-blog’s potential impacts on

informal communication at work

Proposed Method:IndividualUser Intentions categories • Information Sharing• Information Seeking• Friendship-wise

Link analysis algorithm by Jon Kleinberg

User intentions•Daily Chatter•Conversations•Sharing information•Reporting news

Proposed Method:Community• Analyzing the overlapping

community structure technique: Clique Percolation Method (CPM) • Community is union of

members who have common K friends• It implies that inter edge

density is higher than intra edges density.

Key TermKey terms are defined by

frequency of word in each community

Proposed Method:Network• Recurring patterns in word usages•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

MethodologyGathering data

Collected data at specific times of the day Focused on current active users who

continually post a series of 20 or more updatesUsed a Random walk with backtracking to

collect the data

How did users access Twitter61% use the web7,5% mobile7.2% IM1.2% Facebook22.4% custom

applications

Peak timeThe activity occurs

between 10 AM and 4 PM.

Most twitter updates peak around 3 PM and reach a low at 4 AM

LocationsTop 3 are the USA,

Europe, and Japan respectively.

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 Italy.

METHODOLOGYInterview Method

Phone Interviews (40-60 minutes each, Sep. - Dec. 2008)

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?

Result 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

informationDifferences from other communication media

Twitter technology feature service –brevity, mobility, and broadcast nature

Result (cont.)Potential impacts on informal

communication at workKeeping in touch with friends and colleaguesMore understanding perspective in others’

mindsKeeping up with what ‘s new with one another

Conclusion Three studies conducted to gain an in-dept

understanding:Users intentions and community structureThe ways to access and the frequency of using TwitterWhy and how people use TwitterPotential impacts on informal communication at work

References Paper 1

Title: Why we twitter: understanding microblogging usage and communitiesAuthors: Akshay Java, Tim Finin, Xiaodan Song, and Belle TsengForum: 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: http://doi.acm.org/10.1145/134854 9.1348556

  Paper 2

Title: How and why people Twitter: the role that micro-blogging plays in informal communication at workAuthors: Dejin Zhao and Mary Beth RossonForum: 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.Link: http://doi.acm.org/10.1145/1531674.1531710  

Paper 3Title: A few chirps about twitterAuthors: Balachander Krishnamurthy, Phillipa Gill, and Martin ArlittForum: 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.Link: http://doi.acm.org/10.1145/1397735.1397741