Title :
A dynamic thesaurus and its application to associated information retrieval
Author :
Kimoto, Haruo ; Iwadera, Toshiaki
Author_Institution :
NTT Corp., Kanagawa, Japan
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 a 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
Keywords :
information retrieval; information retrieval systems; neural nets; thesauri; connectionist approach; dynamic thesaurus; information retrieval system; links; node weights; precision rate; recall rate; relevant documents; term information; Artificial intelligence; Database systems; Electronic mail; Information retrieval; Laboratories; Machine assisted indexing; Natural language processing; Telegraphy; Telephony; Thesauri;
Conference_Titel :
Neural Networks, 1991., IJCNN-91-Seattle International Joint Conference on
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-0164-1
DOI :
10.1109/IJCNN.1991.155143
