To create a datamap that makes it possible to easily determine the tendency of document data.
In a map creation process, upon receiving search request information including a search keyword and a plurality of pieces of search item information (item 2, item 3), a datamap creation server extracts document data that meets search criteria from a plurality of document data, and narrows down the document data to be shown in the datamap. Next, the plurality of document data extracted are clustered as to the item 2 and classified into a predetermined first section number, and first document component elements are extracted for each section by means of the index of the item 2. Also, the plurality of document data extracted are clustered for an item 3 and classified into a predetermined second section number, and the first document component elements are extracted for each section by means of the index of the item 3. Two-dimensional datamap information is created according to the results of a search process, a clustering process and the like.
COPYRIGHT: (C)2006,JPO&NCIPI
Takahiro Seki
Yasuhiro Yamada
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