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S peaker ： X u B o T ime ： 2011/9/7

S peaker ： X u B o T ime ： 2011/9/7. Questions. How are people connected on Twitter? Who are the most influential people? What do people talk about? How does information diffuse via retweet?. Question 1. How are people connected on Twitter ? # of followings/followers Followers vs. Tweets

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S peaker ： X u B o T ime ： 2011/9/7

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Presentation Transcript

  1. Speaker：XuBo Time：2011/9/7

  2. Questions • How are people connected on Twitter? • Who are the most influential people? • What do people talk about? • How does information diffuse via retweet?

  3. Question 1 • How are people connected on Twitter? • # of followings/followers • Followers vs. Tweets • Reciprocity • Degree of Separation • Homophily

  4. Followers VS. Twitters

  5. Followers VS. Twitters

  6. Homophily

  7. Question 2 • Who are the most influential people? • Followers • PageRank • Retweets

  8. Kendall’s tau变种

  9. Question 3 • What do people talk about?

  10. Singleton, Reply, Mention, Retweet

  11. We consider a trending topic inactive if there is no tweet on the topic for 24 hours (a)73% topics have a single active period; 15% have 2; 5% have 3 (b)31% are 1 day long; only 7% longer than 10 days.

  12. On the number of tweets and their times

  13. Question 4 • How does information diffuse via retweet?

  14. Retweet Trees • We are now interested in how far and deep retweets travel in Twitter

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