DocumentCode
2258641
Title
Research on Soft Set Theory and Parameters Reduction Based on Relational Algebra
Author
Zou, Yan ; Chen, Yuke
Author_Institution
Coll. of Math. & Comput. Sci., Chongqing Normal Univ., Chongqing
Volume
1
fYear
2008
fDate
20-22 Dec. 2008
Firstpage
152
Lastpage
156
Abstract
This paper, based on relational algebra theory, defines difference operation, selection operation and projection operation in soft set theory, applies several basic operations of relational algebra including selection, projection, union and difference to describe the algorithm of parameters reduction of a soft set based on invariability of the optimal choice object, and proves the feasibility of this algorithm of parameters reduction. At last, this algorithm mentioned above is realized using SQL.
Keywords
SQL; query languages; relational algebra; set theory; SQL; optimal choice object; parameters reduction; projection operation; relational algebra; selection operation; soft set theory; Algebra; Application software; Calculus; Computer science; Data structures; Database languages; Educational institutions; Information technology; Mathematics; Set theory; Parameters reduction; Relational algebra; Soft set; Structural query language;
fLanguage
English
Publisher
ieee
Conference_Titel
Intelligent Information Technology Application, 2008. IITA '08. Second International Symposium on
Conference_Location
Shanghai
Print_ISBN
978-0-7695-3497-8
Type
conf
DOI
10.1109/IITA.2008.264
Filename
4739554
Link To Document