information verification during natural disasters
TRANSCRIPT
Information Verification During Natural DisastersAbdulfatai Popoola, Dmytro Krasnoshtan, Attila Toth, Victor Naroditskiy, Carlos Castillo, Patrick Meier and Iyad Rahwan
Video: Boston; when the media gets it wrongApril 2013 – Al Jazeera
5
Carlos Castillo – [email protected]://www.chato.cl/research/
Boston Marathon Bombings
• April 13, 2013 - Bombings• Reddit and 4chan users post photos of
possible suspects• April 18, 2013 – NY Post front-page story
with photos of misidentified suspects• Traditional media blames social media
Video: Social Media and the Boston bombings (edited)April 2013 - CNN
7
Carlos Castillo – [email protected]://www.chato.cl/research/
Selected quotes from CNN discussion
• “We could wonder if the NY Post would have had this terribly irresponsible coverage if it weren't for Reddit”
• “There were rational people on Reddit and social media”
• “Do you think everything you read on Twitter is real? -No, but it is hard to know”
8
Carlos Castillo – [email protected]://www.chato.cl/research/
Motivation
• It might be the case that posting funny memes and verifying information using social media require different tools
• The repertoire of mass-interaction mechanisms we know of is quite limited
Context
10
Carlos Castillo – [email protected]://www.chato.cl/research/
BBC's User-Generated Content Hub
• Contrasting sources from social media• Interviewing individuals• Metrics
– Number of followers, number of reputable followers, history of activity
11
Carlos Castillo – [email protected]://www.chato.cl/research/
Storyful
• “Social media news agency”• Verification of authenticity of photo and
video evidence• Time of day (shadows), weather,
landmarks, etc.• Accents spoken, ambient noises, etc.
12
Carlos Castillo – [email protected]://www.chato.cl/research/
Many others
• Truth in social media is a widespread concern
• Journalists– Verify, verify, verify.
• Computer scientists– Apply ML/IR/NLP/etc.
Castillo C, Mendoza M, Poblete B (2011): Information Credibility on Twitter. Proceedings of WWW Conference.
13
Carlos Castillo – [email protected]://www.chato.cl/research/
Time-critical social mobilization
• DARPA Red Balloon Challenge
14
Carlos Castillo – [email protected]://www.chato.cl/research/
Recursive incentives
• Winner's strategy: recursive incentives
Pickard G, Pan W, Rahwan I, Cebrian M, Crane R, Madan A, and Pentland A (2011): Time-Critical Social Mobilization. Science 28 October 2011: 334 (6055), 509-512.
Naroditskiy V, Rahwan I, Cebrian M, Jennings NR (2012): Verification in Referral-Based Crowdsourcing. PLoS ONE 7(10): e45924.
Design
16
Carlos Castillo – [email protected]://www.chato.cl/research/
Crisis → Claim → Evidence
• Crisis
• Claim
• Evidence
Boston Marathon bombings
Link to official police report
An arrest has been made in connection to the bombings
18
Carlos Castillo – [email protected]://www.chato.cl/research/
Elements of a claim
Media, if available
LocationTitle, description, dates, tags
Weight of evidence for/against & importance
Open the “submit evidence” dialog.
Promotes this claim
Evidence overlay in claim page
Displays supporting media
Allow users to vote evidence up/down, optionally commenting
24
Carlos Castillo – [email protected]://www.chato.cl/research/
Other aspects
• Recursive incentives– Recruiting is encouraged
• Point-based system– Gamification– Social recognition / influence
• Subscription to crises, etc.• Platform actively being developed
Closing remarks
26
Carlos Castillo – [email protected]://www.chato.cl/research/
The interaction mechanisms we know of are quite rudimentary
We can design specialized platforms for mass interaction
for specialized goals
