| 摘要 |
PROBLEM TO BE SOLVED: To easily and efficiently classify a document retrieved by concept retrieval. SOLUTION: This multi-dimensional space model expressing device is provided with terminal equipment 1 for a user which inputs a retrieval sentence, or outputs a retrieval result, a retrieval device 2 which performs the retrieval processing of a patent document based on the retrieval sentence and terminal equipment 3 for management which registers the patent document in the retrieval device 2. A large amount of technical documents(patent documents or the like) are efficiently classified into clusters on several multi-dimensional spaces, and those clusters are arranged on a two-dimensional plane so that a cluster map can be prepared. Thus, it is possible to obtain the cluster map where the error precision of inter-cluster distance is higher according as the inter-cluster distance is shorter, and to visually grasp the relation of the similar clusters. COPYRIGHT: (C)2005,JPO&NCIPI
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