
Node Importance Evaluation of Long-distance Water Delivery System Based on Complex Networks
Yuan-yuan YANG, Hao-yu ZHU, Yun-bin DU, Gang LI
Node Importance Evaluation of Long-distance Water Delivery System Based on Complex Networks
Identifying important nodes in water delivery system plays a significant role in its protection resources distribution and safe operation. A topology network of long-distance water delivery system is constructed by using complex network theory, then a node importance evaluation is achieved with the consideration of local centrality, closeness centrality, betweenness centrality and network centrality from local, global and location aspects. Then evolution process of water delivery network comprehensive efficiency is calculated by removing nodes following their degree of importance. The results show that the nodes located in the middle of the water delivery system are more important, the water delivery network comprehensive efficiency decreased from 0.12 to 0.02 while 34% important nodes were destroyed, which indicates that a few important nodes failed can cause the rapidly collapse of the water delivery system.
complex network / long-distance water delivery system / node importance / network comprehensive efficiency {{custom_keyword}} /
Tab.1 Node importance表1 节点重要度 |
节点 | | 节点 | | 节点 | | 节点 | | 节点 | | 节点 | |
---|---|---|---|---|---|---|---|---|---|---|---|
1 | 0.202 6 | 13 | 0.266 3 | 25 | 0.668 4 | 37 | 0.558 9 | 49 | 0.590 4 | 61 | 0.342 3 |
2 | 0.253 0 | 14 | 0.609 7 | 26 | 0.589 5 | 38 | 0.617 7 | 50 | 0.547 7 | 62 | 0.234 5 |
3 | 0.304 3 | 15 | 0.584 0 | 27 | 0.834 9 | 39 | 0.926 9 | 51 | 0.394 1 | 63 | 0.291 7 |
4 | 0.196 5 | 16 | 0.398 4 | 28 | 0.515 2 | 40 | 0.602 4 | 52 | 0.482 2 | 64 | 0.233 6 |
5 | 0.423 4 | 17 | 0.452 6 | 29 | 0.522 9 | 41 | 0.632 9 | 53 | 0.369 8 | 65 | 0.129 7 |
6 | 0.437 6 | 18 | 0.020 8 | 30 | 0.711 0 | 42 | 0.630 3 | 54 | 0.414 1 | 66 | 0.172 2 |
7 | 0.377 8 | 19 | 0.670 4 | 31 | 0.647 6 | 43 | 0.799 4 | 55 | 0.510 9 | 67 | 0.115 3 |
8 | 0.407 2 | 20 | 0.567 8 | 32 | 0.790 4 | 44 | 0.778 9 | 56 | 0.539 9 | ||
9 | 0.352 8 | 21 | 0.590 6 | 33 | 0.581 5 | 45 | 0.749 6 | 57 | 0.566 1 | ||
10 | 0.692 5 | 22 | 0.070 5 | 34 | 0.599 8 | 46 | 0.634 3 | 58 | 0.405 0 | ||
11 | 0.598 7 | 23 | 0.180 5 | 35 | 0.111 1 | 47 | 0.533 0 | 59 | 0.326 2 | ||
12 | 0.338 8 | 24 | 0.663 7 | 36 | 0.404 5 | 48 | 0.589 9 | 60 | 0.455 1 |
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