1:00 pm Credibility, Authenticity, and Reputation

During disasters, citizens often post firsthand information and pictures and re-post information they have received from official or unofficial sources. Although both types of information are useful to both emergency officials and the public, such sharing raises questions about how to assess the credibility and authenticity of firsthand reports and redistributed information. For example, although the reach of an official message may be widened if it is redistributed (e.g., retweeted), the message may have been modified in ways not anticipated or desired by its originators. The panel will explore credibility, authenticity and reputation in the context of social media and disasters.

Information verification and rumor control
Paul Resnick, University of Michigan

Mechanisms for determining trustworthiness
Dan Roth, University of Illinois, Urbana-Champaign

Training the public to provide useful data during a disaster
David Stephenson, Stephenson Strategies, Medfield, Mass.

Leysia Palen, University of Colorado, Boulder, moderator
2:30 Personal Privacy
  The use of social media by emergency officials raises privacy concerns that were not present with traditional methods of sending alerts and warnings. Also privacy-sensitive, but of potential value to emergency managers, is official monitoring of social media to better detect or understand unfolding events. For example, the networked nature of social media may provide a substantial amount of information about a single individual: based on who one follows on Twitter one may be able to infer where she lives or works and what school her children attend. The panel will consider such questions as:

• What are the public’s perceptions and expectations of privacy, and how can they best be addressed? For

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