| 摘要 |
An objective is to appropriately distribute an advertisement about a communication service. A cluster extractor 11 extracts a plurality of clusters, based on communication records between communication terminals 30 . A clustering coefficient calculator 12 , an average path length calculator 13 , and a degree distribution calculator 14 calculate a clustering coefficient, an average path length in an advertisement distribution target cluster, and a degree distribution, respectively, based on communication records between communication terminals belonging to an advertisement distribution target cluster. An advertising strategy determiner 15 determines an advertising strategy, based on the clustering coefficient and the average path length, and a distribution target determiner 16 determines a distribution target terminal, based on the degree distribution and the advertising strategy. A determined target notifier 17 notifies a communication management device 20 of the distribution target terminal and the advertising strategy and an advertisement distributor 21 distributes an advertisement according to the advertising strategy to the distribution target communication terminal.
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