The aim of this paper is to offer mathematical proofs of Pawlakpsilas rough set theory about distributed knowledge based on rough sets and relational databases. A case study on actual self-reported geriatric data for survival analysis is presented to provide a computational evidence of the distributed knowledge. Risk factors, prolongation time prediction rules and validation are also computed and discussed. We illustrate that dividing a decision table (or database) into smaller units will in general result in the loss of some information by rough set theory.
Pattaraintakorn,P.. Analysis of distributed databases with a hybrid rough sets approach[J]. Neural Networks, 2008. IJCNN 2008. (IEEE World Congress on Computational Intelligence). IEEE International Joint Conference on,2008(1-8):2158-2163.
APA
Pattaraintakorn,&P..(2008).Analysis of distributed databases with a hybrid rough sets approach.Neural Networks, 2008. IJCNN 2008. (IEEE World Congress on Computational Intelligence). IEEE International Joint Conference on(1-8),2158-2163.
MLA
Pattaraintakorn,et al."Analysis of distributed databases with a hybrid rough sets approach".Neural Networks, 2008. IJCNN 2008. (IEEE World Congress on Computational Intelligence). IEEE International Joint Conference on .1-8(2008):2158-2163.
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