Applied Mathematics & Information Sciences

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To further study the influences of nodes failure on the total fitness degree and the cooperative ratio in cooperation network, we established the cooperation network model firstly, and then, the update rules of individual strategy and the rules of networks selfrepair are constructed. The process of self-repair in cooperation network under nodes failure is analyzed by the agent-based simulation experiments. The results show that the nodes failure not only reduces the total fitness degree, but also reduces the cooperative ratio in the cooperation network. However, by introducing the self-repair rules, the emergence of a few new cooperative nodes can soon make up the loss and improve the total fitness degree and cooperative ratio gradually. The further analysis show that, the number of new nodes which to make the fitness degree return to the previous level are less than 20% of the failure nodes.

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