Similarity-based privacy protection for publishing k-anonymous trajectories

摘要

1 Introduction and main contributions The combination of location technology and wireless communication technology has spawned a number of location-based services(LBS).Trusted location service providers(LSP)obtain a large amount of users’trajectories.The knowledge obtained from mining trajectory data can be used in many fields and may lead to privacy disclosure of users.The data owner(LSP)should process the trajectory data to protect privacy before publishing.Clusterreconstruction of trajectories is a common privacy protection method for publishing trajectories.