| 摘要 |
PURPOSE:To enable retrieval with similarity between documents in the case of document retrieval by calculating the similarity and difference mutually between documents corresponding to the attribute set of the document. CONSTITUTION:A document attribute value condition input means 6 inputs the different point or equal point of a document presented at present by a user. A document attribute type condition input means 7 designates the retrieval corresponding to the type of an attribute to be conscious of as the different or equal point. The user designates the document presented at present as the document provided with the close attribute by using a document adjacent request input means 8. Corresponding to these retrieval conditions, the document is retrieved by a similarity/difference retrieving means 11 while using the information calculated by a similarity calculating means 9 and a difference calculating means 10. |
