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Browse Conference Publications > Granular Computing, 2009, GRC ... Help

Approaches for incrementally updating approximations based on set-valued information systems while attribute values' coarsening and refining

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4 Author(s)
Weili Zou ; Sch. of Math., Southwest Jiaotong Univ., Chengdu, China ; Tianrui Li ; Hongmei Chen ; Xiaolan Ji

Incrementally updating approximations in rough set theory may contribute to enhancement of the efficiency of knowledge discovery. This paper firstly introduces the definitions of attribute values' coarsening and refining in set-valued information systems. Then the approach for incrementally updating approximations of a concept is presented while attribute values coarsening and refining. Finally, an example is presented to illustrate the validity of the proposed approach.

Published in:
Granular Computing, 2009, GRC '09. IEEE International Conference on

Date of Conference: 17-19 Aug. 2009

Page(s):
824 - 829
Print ISBN:
978-1-4244-4830-2
INSPEC Accession Number:
10890582
Conference Location :
Nanchang
Digital Object Identifier :
10.1109/GRC.2009.5255006
Product Type:
Conference Publications

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