Creator |
|
Language |
|
Publisher |
|
|
Date |
|
Source Title |
|
Vol |
|
Issue |
|
First Page |
|
Last Page |
|
Publication Type |
|
Access Rights |
|
Crossref DOI |
|
Related DOI |
|
|
Related URI |
|
|
Relation |
|
|
Abstract |
Rough sets theory is now becoming a mathematical foundation of soft computing. This theory makes use of equivalence relations defined for each set of attributes in any table, and applies the concept l...ike definability of a set, dependency among attributes, reduction of data, rule extraction, etc., to data analysis. In this paper, a problem of knowledge discovering in the form of rules from any table with non-deterministic information is discussed. At first, the rough sets based concept including rule extraction is surveyed, and this concept is extended to new one related to non-deterministic information. Then, a framework of rule extraction from tables with non-deterministic information is proposed, and some algorithms for handling such new concept are presented. Also implemented programs and a real execution of these programs are shown.show more
|