arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1106.4948cond-mat.dis-nnq-bio.MN
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布尔网络动力学中的相变和记忆效应

Phase transitions and memory effects in the dynamics of Boolean networks

Alexander Mozeika, David Saad

摘要:

利用生成泛函方法研究了布尔网络的同步动力学,通过一组宏观序参量给出了系统动力学的精确结果.研究的网络拓扑结构及其组成布尔函数代表系统的淬火无序,并从给定的分布中采样。该框架可容纳各种拓扑结构和布尔函数分布,并可用于研究噪声和无噪声的制度,它使一个计算关联函数在不同的时间是无法通过常用的近似。它还用于确定退火近似有效的条件,探索不同噪声水平下系统的相位,并获得具有强记忆效应的模型的结果,其中现有近似被打破。BN和一般布尔公式之间的联系被确定,并突出显示两种系统类型的共同结果。

英文摘要:

The generating functional method is employed to investigate the synchronous dynamics of Boolean networks, providing an exact result for the system dynamics via a set of macroscopic order parameters. The topology of the networks studied and its constituent Boolean functions represent the system's quenched disorder and are sampled from a given distribution. The framework accommodates a variety of topologies and Boolean function distributions and can be used to study both the noisy and noiseless regimes; it enables one to calculate correlation functions at different times that are inaccessible via commonly used approximations. It is also used to determine conditions for the annealed approximation to be valid, explore phases of the system under different levels of noise and obtain results for models with strong memory effects, where existing approximations break down. Links between BN and general Boolean formulas are identified and common results to both system types are highlighted.

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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