| 摘要 |
PROBLEM TO BE SOLVED: To provide a retrieval system which equipped with a system that constructs a large-scale and structured knowledge base using a program. SOLUTION: A retrieval system 1 is configured of: a knowledge base 2 having a knowledge block of a tree structure storing a predetermined word included in a book at the top level, and information related with the predetermined word under the top level; a knowledge base retrieval system 4 for retrieving the knowledge block stored in the knowledge base 2 based on the word input from an input part; and a knowledge base construction system 3 for constructing the knowledge block stored in the knowledge base 2 based on the text data read from a data reading means 30 for reading the text data of the book. The knowledge base construction system 3 generates the knowledge block by executing a natural language processing means 31 and a structured formatting means 32 from the text data read from the data reading means 30, and stores the knowledge block in a knowledge base 2. COPYRIGHT: (C)2011,JPO&INPIT
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