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SUMMARY:Copy Content\, Copy Friends: Studies of Content Curation and Socia
 l Bootstrapping on Pinterest - Changtao Zhong (KCL)
DTSTART:20150423T140000Z
DTEND:20150423T150000Z
UID:TALK57739@talks.cam.ac.uk
CONTACT:Eiko Yoneki
DESCRIPTION:Copying\, sharing and linking have always been important for t
 he functioning and the growth of the World Wide Web. Two recent copying tr
 ends which have emerged are social content curation\, and social logins. S
 ocial curation involves the copying\, categorization and sharing of links 
 and images from third party websites on the social curation website. Socia
 l logins enable the copying of user identities and their friends from an e
 stablished social network such as Facebook or Twitter\, onto third party w
 ebsites. \n\nIn this talk\, we chronicle our ongoing work on Pinterest\, a
  popular image sharing website and social network. The highly active user 
 community on Pinterest has been instrumental in making social curation a m
 ainstream phenomenon. Interestingly\, a large fraction (nearly 60%) of the
  users have also linked their Pinterest accounts with Facebook and have co
 pied their Facebook friends over onto the new website. Thus\, using a larg
 e dataset crawled from Pinterest\, we uncover both the practices used for 
 sharing content\, as well as how the copying of friends has helped the con
 tent sharing. \n\nWe find that social curation tends to copy and share har
 d-to-find niche interest content from websites with a low Alexa Rank or Go
 ogle Page Rank. And users tend to agree with each other on the curation ca
 tegories. Using user preference and image-related features drawn from a st
 ate-of-the-art deep convolutional network\, we develop a prediction cascad
 e to automate a large fraction of social curation actions. On the other ha
 nd\, Pinterest users can also copy friends from Facebook\, or Twitter. We 
 find that this copying of friends create a community with higher levels of
  social interaction\; thus social logins serve as a social bootstrapping t
 ool. But beyond bootstrapping\, we also find a weaning process\, where act
 ive and influential users tend to form more links natively on Pinterest in
 teract with native friends rather than copied friends. \n\nBio: Changtao Z
 hong is a PhD student at King’s College London and affiliated with the D
 epartment of Informatics. He is interested in studying content-driven soci
 al networks and analysing inter-activities of different social networks. M
 ore information can be find from http://www.inf.kcl.ac.uk/pg/czhong/.\n
LOCATION:FW26\, Computer Laboratory\, William Gates Builiding
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