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Table 2 The results of investigating capability of NEFPROX in learning parameter of membership function (MF) of a FIS focusing on the original oFIS

From: Development of a neuro-fuzzy technique for automated parameter optimization of inverse treatment planning

  

Locations of MF [-1;1.2]

  
 

Membership functions

Old FIS

New FIS

Location Difference

Mean Percentage Difference

Input

MF 1

-1.0

-1.0

0.0

0.83%

 

MF 2

1.0

0.9

0.1

 
 

MF 1

-1.0

-1.0

0.0

 
 

MF 2

1.0

1.0

0.0

 
 

MF 1

-1.0

-1.0

0.0

 
 

MF 2

1.0

1.0

0.0

 

Output

MF 1

-1.0

-1.1

0.1

5.0%

 

MF 2

0.0

0.0

0.0

 
 

MF 3

1.0

1.2

0.2

 
 

MF 1

-1.0

-1.1

0.1

 
 

MF 2

0.0

0.0

0.0

 
 

MF 3

1.0

1.1

0.1

 
 

MF 1

-1.0

-1.1

0.1

 
 

MF 2

0.0

0.2

0.2

 
 

MF 3

1.0

1.1

0.1