| 摘要 |
<p>An information providing server (20) comprises a movement history memory unit (22) that associates a plurality of instances of location information and a plurality of instances of identification information, received from a plurality of mobile terminals, and stores same; a mutual relationship memory unit (24) that compares the instance of location information associated with a given instance of identification information with the instance of location information associated with another instance of identification information and associates and stores the two instances of identification information, depending on the determination result of the comparison process; and an identical combination search unit (25), which, when a new instance of location information and a new instance of identification information are received, employs the new instance of location information and the new instance of identification information in selecting at least one of the instances of location information stored in the movement history memory unit (22) and outputs the instance of identification information associated with the selected instance of location information.</p> |
