FRDBMS for imprecise queries based on GEFRED model
Assistant Professor, Computer Science Department, Govt. PG College for Women, MDU Rohtak, Haryana, India.
Research Article
World Journal of Advanced Engineering Technology and Sciences, 2024, 11(02), 024–028.
Article DOI: 10.30574/wjaets.2024.11.2.0080
Publication history:
Received on 26 January 2024; revised on 04 March 2024; accepted on 07 March 2024
Abstract:
When users work with usual software tools they have to change their many valued logical thinking (approximate reasoning) into the two-valued computer logic. Although the Structured Query Language (SQL) is a very powerful tool, it is unable to satisfy needs for data selection based on linguistic expressions and degrees of truth. In this paper, we are interested in flexible querying that is based on fuzzy set theory. Medina et al. have developed a server named fuzzy SQL, supporting flexible queries and based on a theoretic model called GEFRED. To model the flexible queries and the concept of fuzzy attributes, an extension of the SQL language named fuzzy SQL has been defined. The FRDB is supposed to have already been defined by the user. In this paper, the work of medina et al. has been extended to implement a new architecture of fuzzy DBMS based on the GEFRED model. This architecture is based on the concept of weak coupling with the DBMS SQL Server.
Keywords:
FSQL; SQL; Possibility Model; Fuzzy Querying; Membership Function
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Copyright © 2024 Author(s) retain the copyright of this article. This article is published under the terms of the Creative Commons Attribution Liscense 4.0