A dynamic thesaurus and its application to associated information retrieval

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.<>