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Location-based services (LBSS) are widely used with the rapid development of mobile devices and location technology. LBSs not only brings convenience to life, but also brings privacy threats to users. Users upload accurate location information to LBSs to obtain the corresponding services. However, uploading unprocessed location data will directly cause the leakage of users' privacy information. In this work, an efficient location protection method based on differential privacy is proposed.doi:10.21203/rs.3.rs-1504387/v1 fatcat:cm7ca7fvuvbs3c2okxu7krvmva