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arXiv 1910.02520q-bio.QMcs.NAmath.NAq-bio.MN
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基因调控网络随机模型的张量方法分析

Analysis of tensor methods for stochastic models of gene regulatory networks

Shuohao Liao

摘要:

张量结构参数分析(TPA)是近年来发展起来的一种用于模拟和分析基因调控网络随机行为的方法[Liao et.例如,2015年]。该方法采用Fokker-Planck近似的化学主方程,并使用量子张量训练(QTT)格式,作为一个低参数的张量结构表示的经典矩阵和向量,近似的高维稳态概率分布。本文从有效性和准确性方面对TPA的所有逼近步骤进行了详细的误差分析,包括建模误差、人工边界误差、离散化误差、张量舍入误差和代数误差。误差分析说明使用计算实例,包括死亡出生过程和50维异构化反应链。

英文摘要:

The tensor-structured parametric analysis (TPA) has been recently developed for simulating and analysing stochastic behaviours of gene regulatory networks [Liao et. al., 2015]. The method employs the Fokker-Planck approximation of the chemical master equation, and uses the Quantized Tensor Train (QTT) format, as a low-parametric tensor-structured representation of classical matrices and vectors, to approximate the high-dimensional stationary probability distribution. This paper presents a detailed error analysis of all approximation steps of the TPA regarding validity and accuracy, including modelling error, artificial boundary error, discretization error, tensor rounding error, and algebraic error. The error analysis is illustrated using computational examples, including the death-birth process and a 50-dimensional isomerization reaction chain.

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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