© people & data | www. weigend. com Andreas S. Weigend, Ph. D. 韦思岸 教授 The Networked Economy (20): Information Management, Strategy, and Innovation 网络经济 : 信息管理, 战略, 和创新 Social Networks and the Science of Designing Interactions
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3 © people & data | | | | 来源 Source: langreiter.com
4 © people & data | | | | years ago: Produced news E.g., Walter Cronkite “Veroeffentlichte Meinung” 10 years ago: Web Search: Already know what you are looking for Discovery: Serendipity: Find something you didn’t know you were looking for Now: Friends Facebook leverages the social graph, via people they are connected to
5 © people & data | | | | Total unique visitors (in millions) Worldwide daily visitors (in millions) Source: ComScore Networks Unique Visitors Unique Visitors Daily Visitors Daily Visitors MySpace % % Facebook % % Hi % %
6 © people & data | | | | “Facebook is a social utility that connects you with the people around you.”
7 © people & data | | | | | Jan 1, 2007 | Jun 30, 2007
8 © people & data | | | | | Jan 1, 2007 | Jun 30, 2007 (billions, worldwide)
9 © people & data | | | | Activity : Events: Over 130 M invitations sent June M unique recipients 30 M unique senders Photos: 270 M photos uploaded In total, over 2.5 billion photos uploaded by June 2007 Gifts: Over 500k gifts purchased June 2007 Comparable to CyWorld (Korea): Sold virtual items corresponding to USD 100M in 2005
10 © people & data | | | | Launch date: weeks after launch 20 M users have installed at least one Platform App 2 M apps added per day 30k registered developers 1.5k aps in the Application Directory AppInstalls 1. Top Friends7,802, iLike4,341, Graffiti4,311, Fortune Cookie4,210, Horoscopes3,984, X Me3,740, SuperPoke!3,525, Free Gifts3,341, Video3,135,625 Movies2,844,369
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12 © people & data | | | | Bridges between online and offline Facebook culture based initially on verified identities from university s Supports offline through online / enhances online through offline Social norms carried over from real life to Facebook Influencers Can we identify people who drive adoption of a product or a group? Sentiment analysis What are people saying on discussion boards? Who is positive about an issues, who critical? Cross-media analysis Understand links across TV, music, movies, internet, etc.
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