基于SQL的属性核与约简高效计算方法

计算机科学 ›› 2010, Vol. 37 ›› Issue (1): 236-238.

基于SQL的属性核与约简高效计算方法

冯林,李天瑞

(四川师范大学计算机科学学院成都610068);(西南交通大学信息科学与技术学院成都610031)

出版日期:2018-12-01 发布日期:2018-12-01
基金资助:
本文受国家自然科学基金(No.60873108)，四川师范大学科研基金重点项目(No. 061k012)资助。

High Efficiency Approaches for Computing Attributes Core and Reductions Based on SQL

FENG Lin,LI Tian-rui

Online:2018-12-01 Published:2018-12-01

摘要/Abstract

摘要： 结合关系数据库中高性能的SQL语言操作，提出了关系数据库中属性核、属性约简与值核的计算方法。仿真实验结果表明，该方法与经典粗糙集相关方法相比，有更高的执行效率。

关键词: 粗糙集，SQL语言，属性核，属性约简

Abstract: Calculating approaches for attributes core, attributes reductions and values core were developed in relation databases by combing rough set theory and SQL Experimental results illustrate these methods have the better performance in run-time efficiency comparing with the related approaches of the classical rough set theory in processing decilion tables.

Key words: Rough set, SQL, Attributes core, Attributes reductions

冯林,李天瑞. 基于SQL的属性核与约简高效计算方法[J]. 计算机科学, 2010, 37(1): 236-238. https://doi.org/

FENG Lin,LI Tian-rui. High Efficiency Approaches for Computing Attributes Core and Reductions Based on SQL[J]. Computer Science, 2010, 37(1): 236-238. https://doi.org/