Title :
Logical AND model of grade approximation operators
Author_Institution :
Coll. of Math. & Software Sci., Sichuan Normal Univ., Chengdu, China
Abstract :
Grade is an important quantitative index, and graded rough set model is an important improved rough set model. This paper is to explore new improved rough set model. Based on logical AND operation of grade approximation operators, this paper proposes logical AND model of grade approximation operators. In the new model, basic structure and properties are obtained, and macroscopic algorithm and structural algorithm are proposed. Finally logical AND model of grade approximation operators is explained by a medical example.
Keywords :
formal logic; rough set theory; grade approximation operators; graded rough set model; logical AND model; quantitative index; Data analysis; Educational institutions; Humans; Logic; Mathematical model; Mathematics; Quantization; Rough sets; Set theory; approximation operator; grade; graded rough set; logical operation; rough set model;
Conference_Titel :
Networking and Digital Society (ICNDS), 2010 2nd International Conference on
Conference_Location :
Wenzhou
Print_ISBN :
978-1-4244-5162-3
DOI :
10.1109/ICNDS.2010.5479309
