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arXiv 2011.05860q-bio.NC
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对非线性噪声漏积分和Fire神经元模型的物理解和爆破现象的理解

An understanding of the physical solutions and the blow-up phenomenon for Nonlinear Noisy Leaky Integrate and Fire neuronal models

María J. Cáceres, Alejandro Ramos-Lora

摘要:

非线性噪声泄漏积分和火灾神经元模型是描述神经网络活动的数学模型。这些模型已被研究在微观层面上,使用随机微分方程,并在一个介观/宏观层面上,通过平均场的限制,使用福克-普朗克型方程。本文的目的是提高他们的理解,使用他们的粒子系统的数值研究。我们深入分析了随机微分方程的经典和物理解的行为,并将其与已知的福克-普朗克方程进行了比较。这使我们能够更好地理解当爆炸在有限时间内发生时,神经网络中会发生什么。在同时激发所有神经元之后,如果系统是弱连接的,则神经网络收敛到其唯一的稳定状态。否则,它的行为更复杂,因为它可能趋向于稳态或“平台”分布。

英文摘要:

The Nonlinear Noisy Leaky Integrate and Fire neuronal models are mathematical models that describe the activity of neural networks. These models have been studied at a microscopic level, using Stochastic Differential Equations, and at a mesoscopic/macroscopic level, through the mean field limits using Fokker-Planck type equations. The aim of this paper is to improve their understanding, using a numerical study of their particle systems. We analyse in depth the behaviour of the classical and physical solutions of the Stochastic Differential Equations and, we compare it with what is already known about the Fokker-Planck equation. This allows us to better understand what happens in the neural network when an explosion occurs in finite time. After firing all neurons at the same time, if the system is weakly connected, the neural network converges towards its unique steady state. Otherwise, its behaviour is more complex, because it can tend towards a stationary state or a "plateau" distribution.

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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