Data for Natural Disaster Coverage - Rina Tsubaki
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Transcript of Data for Natural Disaster Coverage - Rina Tsubaki
Data & UGC for
(Natural) disaster coverage
Rina TsubakiEmergency Journalism European Journalism [email protected]
Emergency situations
speedaccuracyconsistencyresponsivenesssimplicity of shared information
Information = aid
Preparedness = better information
Hurricane Sandy by WNYC
Hurricane Sandy by WNYC
Google Crisis MapHurricane Pablo (Bopha)
Crowdsourcing (UGC):
new meaning to “by the people, for the people”A pathway for better governance and public services
Crowdsourcing: Risks
False & Fake Rumors Time-lag Virality
Privacy
UGC = data?
Crowdsourcing is great but data is not solid.
Example: Boston Bombings
Sample: - 8 million unique tweets- 3.7 million unique users- 15-19 April 2013
Research: http://precog.iiitd.edu.in/Publications_files/ecrs2013_ag_hl_pk.pdf
UGC = data?
Crowdsourcing is great but data is not solid.
Example: Boston Bombings
- 29% = rumors and fake content- 51% = generic opinions and comments- 20% = true information- Verified accounts and users with high social reputation were
responsible for spreading the fake content
UGC = data?
Crowdsourcing is great but data is not solid.
Example: Boston Bombings
- 32,000 new accounts with at least one tweet- 20 % of new accounts suspended by Twitter- Some of the deleted accounts found to be ‘quite influential’.
False & fakeHurricane Sandy photo
Real photo from the past event
Source: Mashable, 7 Fake Hurricane Sandy Photos You're Sharing on Social Mediahttp://mashable.com/2012/10/29/fake-hurricane-sandy-photos/
False & fakeHurricane Sandy Photo
Intentionally tweaked photos
Source: Snopes.com ‘Hurricane Sandy Photographs’ http://www.snopes.com/photos/natural/sandy.asp
Crowd Filling the Gap of Disaster News Coverage
Media Coverage MapUnderstanding the media coverage gap by comparing the multiple types of data:1)NHK’s breaking news 2)Geo-tagged tweets 3)Crowd-sourced information via
WeatherNews’ Gensai Report
Reference: East Japan Earthquake Media Coverage Map
The role of journalists & Aid Responders
Data Mining Data Sharing Data Visualisation Verification Navigation
Data Journalism handbook
Geofeedia: Tool to find UGC with geo-location info