LOCAL ALTERATION DETECTION DEVICE, LOCAL ALTERATION DETECTION METHOD AND MAP UPDATE METHOD

摘要

PROBLEM TO BE SOLVED: To provide a technology to detect a local utilization alteration.;SOLUTION: A local alteration detection device detecting an appointed local utilization alteration comprises: a daily life area data generation unit generating daily life area data indicating a daily life area which is a regular behavior area of each user in an appointed period on the basis of positioning information which positions of users acquired from several user's terminal and the time correspond; a daily life area superposing data generation unit generating daily life area superposing data which the generated daily life area data of several users are superposed; and an alteration detection unit detecting the appointed local utilization alteration by comparing the daily life area superposing data generated about at least two period.;COPYRIGHT: (C)2014,JPO&INPIT