Social Media and Social Computing. Chapter 1. Traditional Media. Broadcast Media: One-to-Many. Communication Media: One-to-One. Social Media: Many-to-Many. Characteristics of Social Media. “Consumers” become “Producers” Rich User Interaction User-Generated Contents
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Chapter 1, Community Detection and Mining in Social Media. Lei Tang and Huan Liu, Morgan & Claypool, September, 2010.
Broadcast Media: One-to-Many
Communication Media: One-to-One
Filter, then Publish
Publish, then Filter
40% of websites are social media sites
Social Network: A social structure made of nodes (individuals or organizations) and edges that connect nodes in various relationships like friendship, kinship etc.
Friendship Network in Flickr
Friendship Network in YouTube
C = (C1 + C2 + … + Cn)/n
observations over various
real-word large-scale networks
outcome of a
(Figures borrowed from “Emergence of Scaling in Random Networks”)