Journal of the Korean Society for Library and Information Science (한국문헌정보학회지)
- Volume 21
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- Pages.249-290
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- 1991
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- 1225-598X(pISSN)
An Experimental Study on Fuzzy Document Retrieval System
퍼지개념을 적용한 질의식의 분석과 문헌정보 검색에 관한 연구
Abstract
Theoretical developments in the information retrieval have offered a number of alternatives to traditional Boolean retrieval. Probability theory and fuzzy set theory have played prominent roles here. Fuzzy set theory is an attempt to generalize traditional set theory by permitting partial membership in a set and this means recognizing different degrees to which a document can match a request. In this study, an experimentation of a document retrieval system using the fuzzy relation matrix of the keywords is described and the results are offered. The queries composed of keywords and Boolean operaters AND, OR, NOT were processed in the retrieval method, and the method was implemented on the PC of 32bit level (30 MHz) in an experimental system. The measurement of the recall ratio and precision ratio verified the effectiveness of the proposed fuzzy relation matrix of keywords and retrieval method. Compared to traditional crisp method in the same document database, the recall ratio increased
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