基于标签的相似性机制,讨论了有限样本随机博弈的合作进化问题。首先,在局部更新机制和弱选择条件下,讨论了2个基本模型的合作进化。然后,在成对比较机制下,求得不同模型强选择条件下的策略的定位概率。根据系统平衡条件,给出不同策略的平稳分布。最后,分析在具体条件下平稳分布随选择因子变化的表达式。
This paper studies the evolution for cooperation in the finite populations' game based on mechanism of similarity for tags.First,we discuss the evolution for cooperation of two basic models under the local updating mechanism and the condition of weak selection.Then,the fixation probabilities for strategies of different models in the condition of strong selection are obtained,under the pairwise comparison updating mechanism.We present the stationary distributions of different strategies,according to the condition when the system is in equilibrium.Finally we will analyze the expression of the stationary distributions with the change of the intensity of selection under specific conditions.