Construction of a dynamic Thesaurus and its use for associated information retrieval

Authors:
H. Kimoto;T. Iwadera
Affiliations:
Nippon Telegraph and Telephone Corporation, Electrical Communication Laboratories, 407C 1-2356 Take, Yokosuka-Shi, Kanagawa 238-03 Japan;Nippon Telegraph and Telephone Corporation, Electrical Communication Laboratories, 407C 1-2356 Take, Yokosuka-Shi, Kanagawa 238-03 Japan
Venue:
SIGIR '90 Proceedings of the 13th annual international ACM SIGIR conference on Research and development in information retrieval
Year:
1989

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Abstract

An information retrieval system based on a dynamic thesaurus was developed utilizing the connectionist approach. The dynamic thesaurus consists of nodes, which represent each term of a thesaurus, and links, which represent the connections between nodes. Term information that is automatically extracted from user's relevant documents is used to change node weights and generate links. Node weights and links reflect a user's particular interest. A document retrieval experiment was conducted in which both a high recall rate and a high precision rate were achieved.The topics discussed in this paper:Connectionist Model, Automatic Indexing, Information Retrieval, and Thesaurus.