Advertisement selecting apparatus, advertisement selecting method, and storage medium

摘要

An advertisement selecting system is disclosed providing, when selecting advertisements to be exposed to subscribers over the Internet, exposure control reflecting the inventory of advertisements by taking into account results of past exposure of each of the advertisements. When subscribers with a particular profile biased to specific tastes or preferences gain access to contents carrying advertisements, the first-ranked advertisement, i.e., the one best targeted for the subscribers in question, is exposed repeatedly but in a manner also making way for the advertisements in second and subsequent places which would be less likely to be exposed if handled conventionally, so that the stocked advertisements are exposed in fairly averaged fashion. Advertisement exposure is thus controlled in a manner averting lopsided exposure of certain (or partial) advertisement information by giving consideration to the advertisement inventory.