1. An item selecting apparatus comprising: an item property storage unit configured to store an item identifier of each item and item time information representing a time point of creating the item or a time point of starting providing of the item, in an associated manner; a receiving unit configured to receive usage information from another apparatus, the usage information including a use subject identifier for identifying either a user or a terminal unit that the user has used and an item identifier for identifying an item used by the user; a usage history storage unit configured to store a usage history which associates the use subject identifier with the item identifier contained in the usage information received by the receiving unit; a usage characteristics information calculating unit configured to calculate an elapsed value as a difference between the item time information corresponding to the item identifier contained in the usage history stored in the usage history storage unit and a given time point and calculate usage characteristics information with respect to each use subject identifier contained in the usage history stored in the usage history storage unit, based on a distribution of the elapsed values corresponding to the use subject identifier; and an item selecting unit configured to: calculate, with respect to the item identifier stored in the item property storage unit, a freshness value representing a degree of freshness of the item related to the item identifier, based on the item time information corresponding to the item identifier; calculate a novelty index by using correspondence rules with different characteristics corresponding to the usage characteristics information and further applying the freshness value of them on the correspondence rule corresponding to the usage characteristics information of each use subject identifier; calculate a priority of the item each use subject identifier, based on the novelty index; and perform a selection of the item each use subject identifier, based on the priority.