A Rough-set-based Incremental Approach For Updating Approximations Under Dynamic Maintenance Environments

Publisher:
IEEE Computer Soc
Publication Type:
Journal Article
Citation:
IEEE Transactions On Knowledge And Data Engineering, 2013, 25 (2), pp. 274 - 284
Issue Date:
2013-01
Full metadata record
Files in This Item:
Filename Description Size
Thumbnail2012004005OK.pdf1.21 MB
Adobe PDF
Approximations of a concept by a variable precision rough-set model (VPRS) usually vary under a dynamic information system environment. It is thus effective to carry out incremental updating approximations by utilizing previous data structures. This paper focuses on a new incremental method for updating approximations of VPRS while objects in the information system dynamically alter. It discusses properties of information granulation and approximations under the dynamic environment while objects in the universe evolve over time. The variation of an attribute's domain is also considered to perform incremental updating for approximations under VPRS. Finally, an extensive experimental evaluation validates the efficiency of the proposed method for dynamic maintenance of VPRS approximations
Please use this identifier to cite or link to this item: