A-B | B1 | B2 | B3 | B4 | 权重 |
B1 | 1 | 1/5 | 1/3 | 1/2 | 0.0878 |
B2 | 5 | 1 | 2 | 3 | 0.4814 |
B3 | 2 | 1/2 | 1 | 2 | 0.2519 |
B4 | 3 | 1/3 | 1/2 | 1 | 0.1789 |