Abstract
Access control schemes for social network have been presented by some works, while spatial trajectory in social network has not been considered. With the proliferation of locating devices, more and more movement data are presented in social network; these data form spatial trajectories, and are semantic-enriched. We consider semantic spatial trajectories in the access control of social networks in this work, and present a secure semantic model for spatial trajectories in social networks, which aids in the design and development of social network access control systems.
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