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arXiv physics/0608052physics.soc-ph
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文化传播与网络重构模型的精确解

Exact Solutions for Models of Cultural Transmission and Network Rewiring

T. S. Evans, A. D. K. Plato

摘要:

我们通过重新布线网络的度分布来观察进化,因此边的数量是恒定的。这完全等同于具有漂移和创新的文化传播模型中概率分布的演化,或者存在突变的基因同质性模型。我们表明,在文献中的平均场方程是不完整的,并提供完整的方程。然后,我们给出了一个精确的解决方案,他们的长期解决方案和他们的办法平衡。数值结果表明,这些都是很好的近似,并证实了特征简单的逆幂律分布在一定条件下的大规模截止。另一种选择是我们得到一个完全齐次的解。我们考虑如何在实践中可能出现这样的过程,使用最近的少数博弈研究为例。

英文摘要:

We look at the evolution through rewiring of the degree distribution of a network so the number edges is constant. This is exactly equivalent to the evolution of probability distributions in models of cultural transmission with drift and innovation, or models of homogeneity in genes in the presence of mutation. We show that the mean field equations in the literature are incomplete and provide the full equations. We then give an exact solution for both their long time solution and for their approach to equilibrium. Numerical results show these are excellent approximations and confirm the characteristic simple inverse power law distributions with a large scale cutoff under certain conditions. The alternative is that we reach a completely homogeneous solution. We consider how such processes may arise in practice, using a recent Minority Game study as an example.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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