Knowledge Mining from Clinical Datasets Using Rough Sets and Backpropagation Neural Network

Algorithm 1

Steps to extract reduct from dataset.

Step  1.        

Step  2.         

Step  3.

Step  4.             

Step  5. IND(Chp) =       IND(ECG) =

   IND(Vessel) =       IND(Chp, ECG) =

   IND(Chp, Vessel) =   IND(ECG, Vessel) =

   IND() = IND(Chp, ECG, Vessel) =

Step  6. IND(Chp) ≠ IND()         IND(ECG) ≠ IND()

   IND(Vessel) ≠ IND()         IND(Chp, ECG) ≠ IND()

   IND(Chp, Vessel) = IND()      IND(ECG, Vessel) = IND()

   IND() = IND(Chp, ECG, Vessel) =

Step  7. Red() = Chp, Vessel}, {ECG, Vessel    Core() = {Vessel}