| 摘要 |
A system for classification is automatically determined in accordance with search results, and the search results are displayed in a list according to the classification system, thereby assisting an interactive search, such as one for refining the search results. A group of categories representing a group of documents retrieved is automatically extracted by clustering, the degree of belonging of each of the retrieved documents to each of the categories is calculated, and the proportions of the degrees of belonging are displayed by a bar graph. The search results can be rearranged according to the degree of belonging to a designated category.
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