两个快速算法用于从马尔科夫链中找到较低的赫森堡准图普利茨线性系统的解决方案
Yaru Fu1,2, Xiaoyu Jiang3, Yanpeng Zheng4
1School of Mathematics and Statistics, Taiyuan Normal University, Jinzhong, 030619, China.
Scientific reports
|July 2, 2025
概括
两个新的算法有效地解决来自马尔科夫链的非单元下赫森伯格准-托普利茨线性系统. 这些方法实现O [公式:见文本] 复杂性,在速度和准确性方面超过现有算法.
科学领域:
- 数字分析 数字分析
- 计算数学是指计算数学.
- 马尔科夫连锁分析是什么意思
背景情况:
- 在马尔科夫链分析中,非单数下赫森伯格准图普利茨线性系统至关重要.
- 解决这些系统的现有方法可能是计算密集的.
研究的目的:
- 开发和介绍两种快速算法,用于解决非单元下赫森堡准-托普利茨线性系统.
- 分析和确认拟议算法的计算复杂性.
主要方法:
- 低Hessenberg准Toeplitz矩阵的分解成一个Toeplitz矩阵和一个等级矩阵的和.
- 为Toeplitz线性系统采用快速解决器,涉及O[公式:参见文本]运算符.
- 实施和数值评估两个拟议的算法.
主要成果:
- 两个开发的算法实现了O的计算复杂度[公式:见文本].
- 数字结果表明,在余值和CPU时间方面,新算法的优势.
- 与现有方法相比,这些算法被证实是准确和高效的.
结论:
- 拟议的算法在解决与马尔科夫链相关的特定线性系统方面取得了重大进展.
- 复杂度为O[公式:参见文本]提供了大量的计算节省.
- 这些算法是准确和高效的,使它们成为研究人员和相关领域的从业人员的宝贵工具.
相关概念视频
Linear time-invariant Systems
440
A system is linear if it displays the characteristics of homogeneity and additivity, together termed the superposition property. This principle is fundamental in all linear systems. Linear time-invariant (LTI) systems include systems with linear elements and constant parameters.
The input-output behavior of an LTI system can be fully defined by its response to an impulsive excitation at its input. Once this impulse response is known, the system's reaction to any other input can be...
The input-output behavior of an LTI system can be fully defined by its response to an impulsive excitation at its input. Once this impulse response is known, the system's reaction to any other input can be...
440
Mechanistic Models: Compartment Models in Algorithms for Numerical Problem Solving
103
Mechanistic models play a crucial role in algorithms for numerical problem-solving, particularly in nonlinear mixed effects modeling (NMEM). These models aim to minimize specific objective functions by evaluating various parameter estimates, leading to the development of systematic algorithms. In some cases, linearization techniques approximate the model using linear equations.
In individual population analyses, different algorithms are employed, such as Cauchy's method, which uses a...
In individual population analyses, different algorithms are employed, such as Cauchy's method, which uses a...
103
Routh-Hurwitz Criterion II
421
In the application of the Routh-Hurwitz criterion, two specific scenarios can arise that complicate stability analysis.
The first scenario occurs when a singular zero appears in the first column of the Routh table. This situation creates a division by zero issues. To resolve this, a small positive or negative number, denoted as epsilon (∈), is substituted for the zero. The stability analysis proceeds by assuming a sign for ∈. If ∈ is positive, any sign change in the first...
The first scenario occurs when a singular zero appears in the first column of the Routh table. This situation creates a division by zero issues. To resolve this, a small positive or negative number, denoted as epsilon (∈), is substituted for the zero. The stability analysis proceeds by assuming a sign for ∈. If ∈ is positive, any sign change in the first...
421
Linear Approximation in Time Domain
129
Nonlinear systems often require sophisticated approaches for accurate modeling and analysis, with state-space representation being particularly effective. This method is especially useful for systems where variables and parameters vary with time or operating conditions, such as in a simple pendulum or a translational mechanical system with nonlinear springs.
For a simple pendulum with a mass evenly distributed along its length and the center of mass located at half the pendulum's length,...
For a simple pendulum with a mass evenly distributed along its length and the center of mass located at half the pendulum's length,...
129
Transmission-Line Differential Equations
412
Transmission lines are essential components of electrical power systems. They are characterized by the distributed nature of resistance (R), inductance (L), and capacitance (C) per unit length. To analyze these lines, differential equations are employed to model the variations in voltage and current along the line.
Line Section Model
A circuit representing a line section of length Δx helps in understanding the transmission line parameters. The voltage V(x) and current i(x) are measured...
Line Section Model
A circuit representing a line section of length Δx helps in understanding the transmission line parameters. The voltage V(x) and current i(x) are measured...
412
Alternative Sets of Equilibrium Equations
471
When analyzing the behavior of structures, engineers often rely on the concept of equilibrium. This refers to the state where all forces and moments acting on a system balance each other, resulting in no net movement or rotation. In many cases, equilibrium can be described by a set of standard equations. However, in some situations, alternative sets of equilibrium equations must be used to describe the system's behavior accurately.
One example of such a situation can be observed in a...
One example of such a situation can be observed in a...
471


