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Advances in Fuzzy Systems
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2018
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Article
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Tab 6
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Research Article
Fuzzy Analytical Hierarchy Process Method to Determine the Quality of Gemstones
Table 6
TFN set of criteria; each value in the criteria comparison (see Table
2
) is changed to TFN referring to the TFN scale.
ā
Specific Gravity
Color
Hardness
Cutting
Clarity
ā
L
M
U
L
M
U
L
M
U
L
M
U
L
M
U
Specific Gravity
1
1
1
1
1,5
2
0,5
1
1,5
1
1,5
2
1
1,5
2
Color
0,5
0,666667
1
1
1
1
1
1,5
2
0,5
1
1,5
1
1,5
2
Hardness
0,666667
1
2
0,5
0,666667
1
1
1
1
1
1,5
2
1
1,5
2
Cutting
0,5
0,666667
1
0,666667
1
2
0,5
0,666667
1
1
1
1
1
1,5
2
Clarity
0,5
0,666667
1
0,5
0,666667
1
0,5
0,666667
1
0,5
0,666667
1
1
1
1