Research Article
Risk Evaluation of Sewage Treatment PPPABS Projects Using Combination Weight Method and D-S Evidence Theory
Table 7
The basic belief degree, Θ, and discount rate.
| First-level risk factors | Weight | Second-level risk factors | Combined weight | Basic belief degree | Θ | | | | | | |
| | 0.2534 | | 0.0410 | 0.2 | 0.2 | 0.2 | 0.1 | 0.2 | 0.1 | 0.7878 | | 0.0470 | 0.1 | 0.2 | 0.3 | 0.1 | 0.3 | 0 | 0.7567 | | 0.1654 | 0.1 | 0.3 | 0.3 | 0.2 | 0.1 | 0 | 0.1439 |
| | 0.1249 | | 0.0434 | 0.2 | 0.1 | 0.3 | 0.2 | 0.2 | 0.1 | 0.7754 | | 0.0327 | 0.2 | 0.3 | 0.2 | 0.1 | 0.2 | 0 | 0.8307 | | 0.0259 | 0.1 | 0.1 | 0.3 | 0.3 | 0.2 | 0.1 | 0.8659 | | 0.0229 | 0.1 | 0.1 | 0.2 | 0.3 | 0.4 | 0 | 0.8815 |
| | 0.1867 | | 0.1259 | 0.0 | 0.2 | 0.2 | 0.3 | 0.2 | 0 | 0.3483 | | 0.0165 | 0.2 | 0.4 | 0.2 | 0.1 | 0.1 | 0 | 0.91460 | | 0.0443 | 0.1 | 0.2 | 0.3 | 0 | 0.2 | 0.2 | 0.7707 |
| | 0.1352 | | 0.0581 | 0.1 | 0.2 | 0.3 | 0.1 | 0.3 | 0 | 0.6993 | | 0.0359 | 0.2 | 0.2 | 0.2 | 0.2 | 0.1 | 0.1 | 0.8142 | | 0.0413 | 0 | 0.1 | 0.4 | 0.3 | 0.2 | 0 | 0.7862 |
| | 0.2998 | | 0.1932 | 0.3 | 0.2 | 0.1 | 0.2 | 0.1 | 0.1 | 0 | | 0.0344 | 0.1 | 0.1 | 0.2 | 0.5 | 0.1 | 0.1 | 0.8219 | | 0.0285 | 0.2 | 0.1 | 0.3 | 0.1 | 0.3 | 0 | 0.8525 | | 0.0438 | 0 | 0.1 | 0.3 | 0.4 | 0.2 | 0 | 0.7733 |
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