Information propagation in Microblogging Sites
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This document summarizes a study of how information propagates on the social networking site Friendfeed. It analyzed over 10 million posts from September 2009 to track how news of Mike Bongiorno's death was shared. The study found both explicit news sharing and implicit discussion contributed to propagation. Short propagation chains had few shares while long chains spread the news more widely. The study also compared how quickly Friendfeed users learned of the news versus major Italian newspapers. It questions if social networks represent a new form of mass media.
Information propagation in Microblogging Sites
- 1. IR11 | Gothenburg Propagation paths of Information in Social Network Sites SIGSNA research project Luca Rossi University of Urbino Carlo Bo luca.rossi@uniurb.it
- 4. IR11 | Gothenburg What is propagation in Friendfeed?
- 5. IR11 | Gothenburg data All public entries (post and related comments) (Sept. 6 Sept. 19 2009) 10.500.000 posts 500.000 likes. 450.000 users. 15.000.000 di archi (subs).
- 6. IR11 | Gothenburg Data 196.350 Italian posts Language Fidelity Index: Number of Posts in a Language / Number of Posts of users with an entry in that language.
- 7. IR11 | Gothenburg case study: propagation Mike Bongiorno (famous Italian TV host) died on Sept. 8 2010. The news appears in Friendfeed at 01.57 PM: - First entry 130 comments - All entries 585 comments
- 9. IR11 | Gothenburg Using timestamps and network of followers we have been able to track the propagation paths identifying major hubs.
- 10. IR11 | Gothenburg Long propagation chains No propagation Short propagation chains
- 14. IR11 | Gothenburg Explicit news sharing is followed by chatting and discussion. This kind of activity contribute to news propagation Bye Mike! Were missing you! Bye granpa Mike! Mike, youve been a milestone of our TV - Explicit news propagation. - Implicit news propagation. - Mourning ritual of the networked public.
- 15. IR11 | Gothenburg tec nettec net real netreal net edges 14,946,610 161,603 followers 44 13 Some connections are more connections than others When a connection is not enough.
- 16. IR11 | Gothenburg First entry has the highest informative function Most commented entry is a long and articulated discussion
- 17. IR11 | Gothenburg Mass media system 2.0 ? Friendfeed Major Italian Newspapers (Il Corriere della Sera, La Repubblica)
- 18. IR11 | Gothenburg Mass media system 2.0 ? When the news hit the Friendfeed network only SkyTg24 was broadcasting it. The selection code is up to the end user and he decides whenever a specific information is informative.
- 19. IR11 | Gothenburg Mass media system 2.0 ? Is the evolution of news/chat that we have detected similar to couple news/reportage?
- 20. IR11 | Gothenburg More info, papers and data: http://larica.uniurb.it/sigsna SIGSNA is a joint research project with the department of Computer Science of the University of Bologna (Dr. Matteo Magnani) and it is partially founded by Telecom Italia.