**Abbreviations**















#### **Appendix B**


**Table A2.** Weight distribution of the second grade indexes of *r* 1.

The calculated membership matrix *B*<sup>1</sup> is based on Formula (4), and *m* is set as 8.


⎤ ⎥⎥⎥⎥⎥⎥⎥⎥⎥⎦

**Table A3.** Weight distribution of the second grade indexes of *r* 2.


The calculated membership matrix *B*<sup>2</sup> is based on Formula (4), and *m* is set as 10.



**Table A4.** Weight distribution of the second grade indexes of *r* 3.

The calculated membership matrix *B*<sup>3</sup> is based on the Formula (4), and *m* is set as 10.


**Table A5.** Weight distribution of the second grade indexes of *r* 4.


The calculated membership matrix *B*<sup>4</sup> is based on Formula (4), and *m* is set as 11.



**Table A6.** Weight distribution of the second grade indexes of *r* 5.

The calculated membership matrix *B*<sup>5</sup> is based on Formula (4), and *m* is set as 7.

*B*<sup>5</sup> = ⎡ ⎢⎢⎢⎢⎢⎢⎢⎢⎢⎣ 1.000 0.774 0.613 0.387 0.898 1.000 0.898 0.774 0.613 0.898 0.898 0.613 1.000 0.387 0.774 1.000 0.613 0.898 0.387 0.774 ⎤ ⎥⎥⎥⎥⎥⎥⎥⎥⎥⎦

**Table A7.** Weight distribution of the second grade indexes of *r* 5.


The calculated membership matrix *B*<sup>6</sup> is based on Formula (4), and *m* is set as 11.

*B*<sup>6</sup> = ⎡ ⎢⎢⎢⎢⎢⎢⎢⎢⎢⎣ 1.000 0.954 0.845 0.477 0.903 0.778 0.699 0.602 0.602 0.954 0.953 0.845 0.477 1.000 0.778 0.778 0.602 0.699 1.000 0.845 0.954 0.301 0.903 0.602 0.477 0.699 0.778 1.000 0.903 0.945 0.477 1.000 0.602 0.699 0.778 0.845 ⎤ ⎥⎥⎥⎥⎥⎥⎥⎥⎥⎦

#### **Appendix C**

(1) The correlation degree matrix of the first grade index *r*<sup>2</sup> is calculated as follows:


= (−0.006, 0.105,−0.411,−0.647,−0.765)

(2) The correlation degree matrix of the first grade index *r*<sup>3</sup> is calculated as follows:


*K*(*r*3)=(ω31, ω32, ω33, ω34, ω35, ω36, ω37, ω38)(*kj*(*r*3)) =

= (−0.075, 0.205,−0.276,−0.566,−0.711);

(3) Correlation degree matrix of the first grade index *r*<sup>4</sup> is calculated as follows:


= (−0.204, 0.200,−0.260,−0.540,−0.694);

(4) Correlation degree matrix of the first grade index *r*<sup>5</sup> is calculated as follows:


(5) Correlation degree matrix of the first grade index *r*<sup>6</sup> is calculated as follows:

