Abstract
In recent years it has become increasingly necessary to capture information on uncertainty, imprecision, and ambiguity along with precise values in databases. Fuzzy set theory has been established as a useful tool for representing imprecision and grades of membership. It has also been integrated with the relational database model and proven to be an excellent mechanism for expressing relationships among attribute values and imprecision in querying [1].
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Buckles, B.P. and F.E. Petry. A fuzzy model for relational databases. Journal of Fuzzy Sets and Systems 1982; Vol. 7, No. 3, 213–226.
Pawlak, Z. Rough sets. Int. J. Computer and Info. Sciences 1982; 11: 341–356.
Slowinski, R. A generalization of the indiscernibility relation for rough sets analysis. First International Workshop on Rough Sets, Poland, 1992.
Codd, E.F. A relational model of data for large shared data banks. Communications of the ACM 1970; 13: 377–387.
Maier, D. The Theory of Relational Databases, Computer Science Press, Rockville, MD, 1983.
Buckles, B.P. and F.E. Petry. Uncertainty models in information and database systems. Journal of Information Science 1985; 11: 77–87.
Roth, M.A., H.F. Korth, and D.S. Batory. SQL/NF: A query language for non-1NF databases. Information Systems 1987; 12: 99–114.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1994 British Computer Society
About this paper
Cite this paper
Beaubouef, T., Petry, F.E. (1994). A Rough Set Model for Relational Databases. In: Ziarko, W.P. (eds) Rough Sets, Fuzzy Sets and Knowledge Discovery. Workshops in Computing. Springer, London. https://doi.org/10.1007/978-1-4471-3238-7_12
Download citation
DOI: https://doi.org/10.1007/978-1-4471-3238-7_12
Publisher Name: Springer, London
Print ISBN: 978-3-540-19885-7
Online ISBN: 978-1-4471-3238-7
eBook Packages: Springer Book Archive