Patent ID: 11914747
Assignee: HERE GLOBAL B.V.
Field: Digital communication (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 16:
17. A method comprising:
receiving a set of probe data points defining a target trajectory from a probe apparatus;
characterizing the target trajectory based on features of the target trajectory;
identifying a plurality of candidate trajectories sharing at least some features with the target trajectory;
calculating, for each of the plurality of candidate trajectories, a similarity score with respect to the target trajectory, wherein the similarity score for a candidate trajectory reflects a similarity between shared features of the candidate trajectory with the target trajectory;
calculating a privacy score representing a likelihood of identifying the probe apparatus from the target trajectory based on a number of trajectories in the plurality of candidate trajectories and their respective similarity score, wherein the privacy score increases responsive to an increase in the number of trajectories and responsive to an increase in a number of shared features of each candidate trajectory with the target trajectory; and
providing information associated with the target trajectory for location-based services in response to the privacy score satisfying a predetermined value.