A content-driven reputation system for the wikipedia
Proceedings of the 16th international conference on World Wide Web
Designing games with a purpose
Communications of the ACM - Designing games with a purpose
Location-based trust for mobile user-generated content: applications, challenges and implementations
Proceedings of the 9th workshop on Mobile computing systems and applications
Nericell: rich monitoring of road and traffic conditions using mobile smartphones
Proceedings of the 6th ACM conference on Embedded network sensor systems
Toward trustworthy mobile sensing
Proceedings of the Eleventh Workshop on Mobile Computing Systems & Applications
I am a sensor, and I approve this message
Proceedings of the Eleventh Workshop on Mobile Computing Systems & Applications
Ear-phone: an end-to-end participatory urban noise mapping system
Proceedings of the 9th ACM/IEEE International Conference on Information Processing in Sensor Networks
GreenGPS: a participatory sensing fuel-efficient maps application
Proceedings of the 8th international conference on Mobile systems, applications, and services
Are you contributing trustworthy data?: the case for a reputation system in participatory sensing
Proceedings of the 13th ACM international conference on Modeling, analysis, and simulation of wireless and mobile systems
Location-based crowdsourcing: extending crowdsourcing to the real world
Proceedings of the 6th Nordic Conference on Human-Computer Interaction: Extending Boundaries
Crowdsourcing systems on the World-Wide Web
Communications of the ACM
ICWE'10 Proceedings of the 10th international conference on Current trends in web engineering
Field trial of Tiramisu: crowd-sourcing bus arrival times to spur co-design
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Recruitment framework for participatory sensing data collections
Pervasive'10 Proceedings of the 8th international conference on Pervasive Computing
Uncovering properties in participatory sensor networks
Proceedings of the 4th ACM international workshop on Hot topics in planet-scale measurement
Towards a generic framework for trustworthy spatial crowdsourcing
Proceedings of the 12th International ACM Workshop on Data Engineering for Wireless and Mobile Acess
Proceedings of the 2013 ACM international joint conference on Pervasive and ubiquitous computing
From sensing to controlling: the state of the art in ubiquitous crowdsourcing
International Journal of Communication Networks and Distributed Systems
A comparison of Foursquare and Instagram to the study of city dynamics and urban social behavior
Proceedings of the 2nd ACM SIGKDD International Workshop on Urban Computing
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Crowdsourcing has become a successful paradigm in the past decade, as Web 2.0 users have taken a more active role in producing content as well as consuming it. Recently this paradigm has broadened to incorporate ubiquitous applications, in which the smart-phone users contribute information about their surrounding, thus providing a collective knowledge about the physical world. However the acceptance and openness of such applications has made it easy to contribute poor quality content. Various solutions have been proposed for the Web-based domain, to assist with monitoring and filtering poor quality content, but these methods fall short when applied to ubiquitous crowdsourcing, where the task of collecting information has to be performed continuously and in real-time, by an always changing crowd. In this paper we discuss the challenges for quality control in ubiquitous crowdsorucing and propose a novel technique that reasons on users mobility patterns and quality of their past contributions to estimate user's credibility.