| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To highly accurately detect a secure document by a simple definition. <P>SOLUTION: A secure document detection method is executed by a secure document detector, and the secure document detector includes an arithmetic unit and a storage device for holding a dictionary. In the dictionary, a plurality of keyword pairs each including at least two keywords and information indicating the position relation in a document of the two keywords included in each keyword pair are registered. The secure document detection method includes a first procedure of extracting the keyword pair registered in the dictionary from inputted document data, and a second procedure for determining whether or not the inputted document data is the secure document on the basis of the position relation in the inputted document data of the two keywords included in the extracted keyword pair. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
