Table 6 Coating protection performance judgment matrix.

From: Coating matching recommendation based on improved fuzzy comprehensive evaluation and collaborative filtering algorithm

u4

C1

C2

C3

C4

Weight

Consistency test

C1

1

1/2

1/2

1

0.1667

λmax = 4

C2

2

1

1

2

0.3333

CI = 0

C3

2

1

1

2

0.3333

CR = 0 < 0.1

C4

1

1/2

1/2

1

0.1667

 
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