ABSTRACT
At CPSWeek 2011, the authors presented a demonstration of Apollo, a fact-finder for participatory sensing that ranks archived human-centric and sensor data by credibility. The current demonstration significantly extends our previous work by allowing Apollo to operate on live streaming data; in this case, live Twitter feeds. As the role of humans as sensors increases in emerging sensing applications, a principled approach becomes necessary to address the problem of ascertaining the veracity of sources and observations made by them. Participatory and social sensing applications may use potentially unreliable or unverified sources, such as a phone-based sensing application that grows virally in a large un-vetted population, a disaster-response application, where conflicting damage assessment reports may come from large numbers of different volunteers, or a military application, where friendly observers at a remote location may make hard-to-verify claims about local events. Apollo analyzes noisy data that increasingly plagues human-centric sensing to determine which items of information are more likely to be true.
- A. Galland, S. Abiteboul, A. Marian, and P. Senellart. Corroborating information from disagreeing views. In WSDM, pages 131--140, 2010. Google ScholarDigital Library
- H. K. Le, H. Ahmadi, D. Wang, O. Fatemieh, Y. Sarwar, M. Gupta, J. Pasternack, T. Abdelzaher, J. Han, D. Roth, B. Szymanski, S. Adali, R. Ganti, F. Ye, and H. Lei. Apollo: Towards factfinding in participatory sensing. In IPSN (demo abstract), 2011.Google Scholar
- J. Pasternack and D. Roth. Knowing what to believe (when you already know something). In COLING, 2010. Google ScholarDigital Library
Index Terms
- Demo: Distilling likely truth from noisy streaming data with Apollo
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