COMPUTER SYSTEM FOR GENERATING DATA STRUCTURE FOR INFORMATION RETRIEVAL, ITS METHOD, COMPUTER EXECUTABLE PROGRAM FOR GENERATING DATA STRUCTURE FOR INFORMATION RETRIEVAL, COMPUTER READABLE STORAGE MEDIUM STORING COMPUTER EXECUTABLE PROGRAM, INFORMATION RETRIEVAL SYSTEM, AND GRAPHICAL USER INTERFACE

摘要

PROBLEM TO BE SOLVED: To provide a system and a method based on the identification of a cluster of elements (e.g. documents) indicating a degree of high mutual similarity with a background for information retrieval and data mining of a large-scale text database.

SOLUTION: The computer system comprises a neighborhood patch generation part 34 for generating data structure for the information retrieval of documents stored in the database and generating a node group having prescribed similarities in a hierarchy structure. The neighborhood patch generation part 34 comprises a hierarchy generation part 36 for generating hierarchy structure upon document-keyword vectors and a patch definition part 26. The computer system comprises a cluster estimation part 28 for generating cluster data of the document-keyword vectors by using the similarities of patches.

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