UbiCrowd 2012 - Workshop on Ubiquitous Crowdsourcing (UbiCrowd 2012)

Crowdsourcing systems aim to solve complex tasks by engaging a multitude of humans through mobile and social media and by harnessing their ability to perform specific subtasks and to report the results. Given the rapid increase in the number, size and diversity of ubiquitous crowdsourcing applications across a wide spectrum of domains all around the world, there is a need for a principled way of conceptualizing such systems. Crowdsourcing systems need to address a common set of issues to ensure their effectiveness, such as quality control and incentive design. Ubiquitous crowdsourcing applications introduce additional actors to be considered in the quality management aspects. Mobile device characteristics, sensor reliability and battery availability are only some elements that may further affect the quality of submitted task. In this workshop we address a set of themes emerging from development and deployment of ubiquitous crowdsourcing system, including: quality control, evaluation frameworks and crowd computation models.