A resource recovery strategy based on evolutionary game theory was proposed to address the high risks of network attacks and the challenges in recovering from failures in spatial information networks. The strategy first defined network efficiency and demand satisfaction rate as performance indicators and introduced a method for calculating network elasticity to assess the recovery capability of a failed network. A resource allocation strategy was then developed for the competitive recovery of resources in local networks, along with a probabilistic approach to resource recovery. By using these strategies, a network elasticity model was constructed. Finally, evolutionary game theory was applied to the interactions between faulty network nodes, utilizing a ternary public goods game, an adaptive strategy selection mechanism based on success or failure, and Fermi dynamic updating rules to guide the allocation of recovered resources. The evaluation of network elasticity demonstrates that the proposed allocation strategy achieves optimal recovery outcomes and network elasticity in both fully and partially failed networks.
非确定性更新规则通过随机选择机制来避免出现局部最优的情况,但级联故障中博弈网络规模较小,不存在严重的局部最优问题.因此更新规则可以选用更具指向性的寻优机制来降低到达动态均衡的时间成本和计算成本.对此提出一种自适应的赢存输变(win stay and lose shift,WSLS)偏好选择机制.设在博弈轮次进行博弈策略更新的节点为,博弈对象为节点,学习的对象为,和的收益分别为和,自适应的WSLS偏好选择机制流程如下:
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