
ProLoc is a location proof service that can retroactively generate region proofs for a device's location at a given time, by correlating the device's self-reported locations and short-range radio encounters with nearby devices. ProLoc includes a novel defense against large-scale collusion attacks involving many fictitious devices.


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validating-citizen-journalism-reports-through-robust-location-proofs-in-hindsight


Validating Citizen Journalism Reports Through Robust Location Proofs in Hindsight


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The proposed SA-LSPL model effectively captures both the long-term and short-term preferences of users by modeling the spatio-temporal correlations and dependencies at the sequence level, as well as incorporating personalized preferences and social influences.


sequence-aware-long-and-short-term-preference-learning-for-next-point-of-interest-recommendation


Sequence-Aware Long- and Short-Term Preference Learning for Next Point of Interest Recommendation
