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TwitterRank: ReTweets as Search Quality Signal


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A presentation explaining why and how Twitter and ReTweets can be used by search engines as a real-time form of page rank.

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TwitterRank: ReTweets as Search Quality Signal

  1. 1. Social Search Quality Signals<br />Real Time Quality Signals<br />Dan Zarrella<br />@DanZarrella<br /><br />
  2. 2. The Problem<br />Web Search is Broken.<br />
  3. 3. Web Search is Too Slow<br />Page to page links are too slow<br />Hours or days to be created<br />Days or weeks to be indexed<br />New Content takes hours or days to find<br />
  4. 4. Social News Sites<br />Hours or days to produce a signal of high quality<br />Too small & niche<br />
  5. 5. Social Networks<br />Facebook (et al) too closed for real API access<br />In-network/connection & scoping & privacy issues<br />
  6. 6. The Solution<br />Twitter for Real Time Signals<br />
  7. 7. ReTweeting is Link Sharing<br />
  8. 8. New Content is Often ReTweeted<br />
  9. 9. Possible Flaws<br />Not Even Twitter is Perfect<br />
  10. 10. Rich Get Richer<br />
  11. 11. Sock Puppet Accounts<br />79.79% failed to provide a homepage URL<br />75.86% of users have not entered a bio<br />68.68% have not specified a location<br />55.50% are not following anyone<br />54.88% have never tweeted<br />52.71% have no followers<br />
  12. 12. The Algorithm<br />The Math<br />
  13. 13. ReTweets-per-Follower (R0) <br /><ul><li># of Tweets divided by the number of followers of those who tweeted it
  14. 14. RT/followers = R0</li></li></ul><li>TweeterAuthority<br />Citation-style Authority<br />Mentions-per-Day = TweeterAuthority<br />
  15. 15. Combined Metric<br />R0* Sum(TweeterAuthority of Users Who Tweeted)<br />
  16. 16. Relevance Signal<br /><ul><li>The other words retweeted with a link</li></ul>(Co-Occurrence with Link/RTs) / (Total Occurences/SampleSet)<br />
  17. 17. Thank You!<br />Dan Zarrella<br />@DanZarrella<br /><br />