  This paper overviews the state of the art, research challenges, and future
opportunities in an emerging research direction: Social Sensing based Edge
Computing (SSEC). Social sensing has emerged as a new sensing application
paradigm where measurements about the physical world are collected from humans
or from devices on their behalf. The advent of edge computing pushes the
frontier of computation, service, and data along the cloud-to-things continuum.
The merging of these two technical trends generates a set of new research
challenges that need to be addressed. In this paper, we first define the new
SSEC paradigm that is motivated by a few underlying technology trends. We then
present a few representative real-world case studies of SSEC applications and
several key research challenges that exist in those applications. Finally, we
envision a few exciting research directions in future SSEC. We hope this paper
will stimulate discussions of this emerging research direction in the
community.
