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SUMMARY: Study of Twitter unfollow behavior  - Sue Moon (KAIST)
DTSTART:20121004T150000Z
DTEND:20121004T160000Z
UID:TALK39572@talks.cam.ac.uk
CONTACT:Eiko Yoneki
DESCRIPTION:Unfollow in Twitter offers a unique opportunity to researchers
  to study the dissolution of relationship.  We began our study of Twitter 
 unfollow behavior with daily snapshots of follow relationship of 1.2 milli
 on Korean-speaking users for 51 days and their all tweets. From our initia
 l analysis\, we confirm that unfollow is prevalent and irrelevant to the v
 olume of interaction. We find that other factors such as link reciprocity\
 , tweet burstiness and informativeness are crucial for unfollow decision. 
  We conduct interview with 22 users to supplement the results and figure o
 ut motivations behind unfollow behavior. Then we use a multiple logistic r
 egression model to analyze the impacts of the structural and interactional
  properties on unfollow in Twitter. Our model with 42 dependent variables 
 demonstrates that both structural and interactional properties are importa
 nt to explain the unfollow behavior. For the last part of the study we rel
 ax the inter-link independence assumption and present preliminary results 
 from the p*/ERGM model.  We will conclude the talk with an overview of oth
 er related works at the KAIST AN research lab.\n\nBio: Sue Moon received h
 er B.S. and M.S. from Seoul National University\, Seoul\, Korea\, in 1988 
 and 1990\, respectively\, all in computer engineering.  She received a Ph.
 D. degree in computer science from the University of Massachusetts at Amhe
 rst in 2000. From 1999 to 2003\, she worked in the IPMON project at Sprint
  ATL in Burlingame\, California. In August of\n2003\, she joined KAIST and
  now teaches in Daejeon\, Korea. She is serving as TPC co-chair for WWW 20
 13 and as vice chair for WWW 2014. She is currently serving as associate e
 ditor for Network Science. She won the best paper award in ACM SIGCOMM Int
 ernet Measurement\nConference 2007\, has been awarded the Amore Pacific Wo
 man Scientist Award in 2009 and the Young Engineer's Award by the National
  Academy of Engineering of Korea in 2012.  She has been named for KAIST en
 dowed professorship for 2011-2013. Her research interests are: online soci
 al networks and networked systems.
LOCATION:FW26\, Computer Laboratory\, William Gates Builiding
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