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DOCUMENT ANALYSIS SYSTEM, DOCUMENT ANALYSIS METHOD, STORAGE MEDIUM HAVING DOCUMENT ANALYSIS PROGRAM STORED THEREON, DOCUMENT CLUSTERING SYSTEM, DOCUMENT CLUSTERING METHOD, AND STORAGE MEDIUM HAVING DOCUMENT CLUSTERING PROGRAM STORED THEREON
DOCUMENT ANALYSIS SYSTEM, DOCUMENT ANALYSIS METHOD, STORAGE MEDIUM HAVING DOCUMENT ANALYSIS PROGRAM STORED THEREON, DOCUMENT CLUSTERING SYSTEM, DOCUMENT CLUSTERING METHOD, AND STORAGE MEDIUM HAVING DOCUMENT CLUSTERING PROGRAM STORED THEREON
This document analysis system clusters a crime-related document with other documents in which the criminal technique is similar to the criminal technique that is recorded in said crime-related document. In addition, a feature vector is precisely calculated from the crime-related document. The document analysis system extracts an act expression and an expression that has a dependency relation with the act expression from a plurality of crime-related documents, extracts one or a plurality of pairs of the act expression and the expression that has a dependency relation with the act expression from the documents as a technique element, associates a technique element group that comprises one or a plurality of the technique elements with the crime-related document that is the extraction source of said technique elements, determines whether an expression that corresponds to the technique elements that constitute the technique element group and that is associated with another crime-related document that differs from the specified crime-related document is recorded in the specified crime-related document, and calculates a feature vector for the specified crime-related document on the basis of the determination result.
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