TRAVEL ROUTE DATA ANONYMIZATION DEVICE AND METHOD

摘要

PROBLEM TO BE SOLVED: To anonymize travel route data in an effectively usable form, avoiding identification of a person.SOLUTION: A travel route anonymization device includes: route data acquisition means for acquiring a plurality of pieces of travel route data including travel routes and time zones in which travels were carried out; route anonymization means for classifying the plurality of pieces of travel route data on the basis of similarity to travel routes so that the number of pieces of travel route data in the same class is a first threshold or higher, and unifying the pieces of travel route data in the same class to be a representative travel route; time anonymization means for abstracting a time zone in which a travel in the travel route data was carried out so that travels carried out in the same time zone have a second threshold or higher for the travel route data in the same class; and output menas for outputting travel route data processed by the route anonymization means and the time anonymization means.SELECTED DRAWING: Figure 3