Research Article
A Hybrid Grey Based KOHONEN Model and Biogeography-Based Optimization for Project Portfolio Selection
Table 5
The results from ranking the projects in each cluster with grey relational analysis.
| (a) |
| | Project | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | | Cluster | 1 | 1 | 2 | 1 | 3 | 2 | 3 | 4 | 3 | 3 | | GRA | 0.2929 | 0.9945 | 0.5457 | 0.2925 | 0.4035 | 0.2860 | 0.2858 | 0.9989 | 0.3354 | 0.9955 |
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| (b) |
| | Project | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | | Cluster | 4 | 3 | 4 | 3 | 3 | 4 | 2 | 3 | 1 | 2 | | GRA | 0.2858 | 0.6657 | 0.5434 | 0.9995 | 0.3997 | 0.3756 | 0.2860 | 0.9957 | 0.2857 | 0.9992 |
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