Apparatus, Method, And Computer Program For Selecting Items

摘要

A similar item set making section makes a similar item set corresponding to a target item. With respect to a first set of some or all of items in the similar item set, a first rate calculating section calculates a first rate. An item characteristic value calculating section calculates an item characteristic value by using the first rate. An item selecting section makes, from items in the similar item set, an associated item set corresponding to the target item. Recommended item conditions are for deciding whether or not an item should be recommended. The associated item set is designed so that when the item characteristic value satisfies prescribed item characteristic value conditions, the rate of the number of items satisfying recommended item conditions in the associated item set to the number of all items therein is greater than the first rate and smaller than 1.