| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a document information extracting device capable of guessing future information streams by utilizing information used in the past subject extraction. <P>SOLUTION: An information upheaval detecting device 10 comprises: a processing object document collecting part 100 for collecting document information having time information; a word recognizing part 102 for performing a morpheme analysis of the document information; a syntax recognizing part 106 for performing modification analyzing of the document information; a storing part 116 for storing a stream pattern of information constituting a subject; an information stream managing part 114 for detecting words constituting the subject and a stream of modification relations from analysis results of the document information; and an information stream guessing part 118 for comparing the detected stream with a stream appearance pattern of the storing part and guessing the words constituting the subject or a modification relation on the basis of a stream appearance pattern selected from comparison results. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
