| 摘要 |
PROBLEM TO BE SOLVED: To quickly collect documents for a specific use through a network. SOLUTION: The document collection method provides a positive sample document group which is a document group relating to a certain field and a negative sample document group which is a document group relating to a field less relating to the field, determines a document to be collected relating the field based on reference relationship between the positive sample document group and the negative sample document group and collects the document to be collected through the network. COPYRIGHT: (C)2008,JPO&INPIT
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