| 摘要 |
A server apparatus (200) includes a content segment acquisition unit (202) that sequentially acquires, from a client device (300), comparison counterpart segments constituting a part of a candidate content, each corresponding to each of comparison segments constituting a part of acquired contents, a duplication decision unit (204) that compares, each time the comparison counterpart segment is acquired, the comparison counterpart segment and the corresponding comparison segment to thereby decide whether a content having the comparison segment that agrees with the comparison counterpart segment is included in the acquired contents, and a content acquisition unit (208) that acquires the candidate content from the client device and stores the candidate content in the storage unit (211) in the case where such a content is not included. The content segment acquisition unit (202) aborts acquisition of a subsequent comparison counterpart segment in the case where the above content is not included. |
