Patent ID: 8676839

Claim:
An information processing device, comprising: a range of activity information acquisition unit which acquires information of the range of activity that is an area that a user who contributes contribution information on a plurality of facility visits by the user; and a reliability level evaluation unit, including a processor, which evaluates the level of reliability for the contribution information based on the information of the range of activity for each of the plurality of facility visits by the user such that multiple visits by the user that meet reliability level evaluation conditions increase the level of reliability above a level of reliability for a single visit by the user that meets the reliability level evaluation conditions; wherein the reliability level evaluation unit evaluates the level of reliability based on the reliability level evaluation conditions that include at least either a time zone designated by a contribution information providing server that provides the contribution information or the distance from the facility; wherein the reliability level evaluation unit evaluates the level of reliability by calculating a number of times that the distance from the position indicating positional information of the user to the facility is within a designated distance in a time zone designated by the reliability level evaluation conditions using the history of the positional information of the user; and wherein the reliability level evaluation unit increases the reliability level each of the number of times that the distance from the position indicating positional information of the user to the facility is within a designated distance in a time zone designated by the reliability level evaluation conditions using the history of the positional information of the user.