A COMPARATIVE ANALYSIS OF UNCERTAIN QUERY PROCESSING USING FUZZY SETS AND VAGUE SETS

The most important aspect in the utilization of a database system is its ability of processing information and queries correctly. The objective of the present paper is to analyze and compare the performance of fuzzy and vague database models with respect to processing of uncertain queries. An algorithm has been designed for that purpose and has been successfully applied to queries related to real life examples. The study reveals that vague sets produce more accurate decisions in comparison to fuzzy sets and thus a DBMS that uses vague theoretic concept may become a more powerful software product than those currently available.