| 摘要 |
Image data from a client terminal is sent to a server along with its tags. In the server, hop number between the input tags or between the input tag and an accumulated tag that is added to image data accumulated in an image database is counted. Moreover, appearance frequency of the input tag is counted. Furthermore, entry sequence of the input tag is counted. When the hop number, appearance frequency and entry sequence are counted, evaluation values corresponding to the counted values and a reference value are integrated to calculate a score. The score is registered in the image database along with the combination of the tags.
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