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共轭梯度法
说明: 共轭梯度法(Conjugate Gradient)是介于最速下降法与牛顿法之间的一个方法,它仅需利用一阶导数信息,但克服了最速下降法收敛慢的缺点,又避免了牛顿法需要存储和计算Hesse矩阵并求逆的缺点,共轭梯度法不仅是解决大型线性方程组最有用的方法之一,也是解大型非线性最优化最有效的算法之一。 在各种优化算法中,共轭梯度法是非常重要的一种。其优点是所需存储量小,具有步收敛性,稳定性高,而且不需要任何外来参数。(Conjugate gradient method Gradient) is a method between the steepest descent method and Newton's method. It only uses the first derivative information, but overcomes the disadvantage of slow convergence of steepest descent method, and avoids the disadvantage of storing and calculating Hesse matrix and solving inverse of Newton's method. Conjugate gradient method is not only one of the most useful methods to solve large-scale linear equations, but also the most effective method to solve large-scale nonlinear optimization One of the algorithms of. Among all kinds of optimization algorithms, conjugate gradient method is very important. It has the advantages of small storage, step convergence, high stability and no external parameters.)
- 2020-06-27 15:46:08下载
- 积分:1
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SR-simulation
基于随机共振的微弱信号检测仿真,且包含求解郎之万方程的四阶龙格库塔算法源程序。(Fourth-order Runge-Kutta algorithm source simulation based on stochastic resonance in weak signal detection, and includes solving the Langevin equation.)
- 2021-01-19 17:48:42下载
- 积分:1
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pic1d
这是一个用于一维等离子体粒子模拟的Fortran程序。(This is a one-dimensional plasma particle simulation for Fortran programs.)
- 2021-04-13 10:18:56下载
- 积分:1
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wtls
加权总体最小二乘matlab工具箱,包含各种总体最小二乘算法的源代码(weighted total least squares toolbox)
- 2020-09-11 16:08:01下载
- 积分:1
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Main_stress
是一个基于Fortran语言计算 第一主应力 和 第三主应力 结构数值计算方便的代码(Fortran language is a calculation based on the first principal stress and the third principal stress code structure to facilitate numerical calculation)
- 2011-04-23 20:44:17下载
- 积分:1
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徐亦达machine-learning-notes-master
说明: 包含了悉尼科技大学徐亦达老师的课程课件,有贝叶斯理论、EM算法、卡尔曼滤波、HMM、粒子滤波、概率论相关知识等(The file includes knowledge about EM, HMM, particle filter, kalman filter and so on.)
- 2020-08-01 13:58:36下载
- 积分:1
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zl0
实测电压和电流的有效值及各次谐波的提取方法(The effective value of measured voltage and current and the method of extracting harmonics.)
- 2018-03-06 21:16:35下载
- 积分:1
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shiweidele
施威德勒球壳在ansys中的建模分析,APDL语言(Of Schwedler shell modeling in ansys, APDL language)
- 2012-10-22 14:32:47下载
- 积分:1
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2D-TM
2维的FDTD C程序(2-dimensional FDTD C procedures)
- 2008-05-05 07:34:54下载
- 积分:1
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QR-decomposition
QR分解法是目前求一般矩阵全部特征值的最有效并广泛应用的方法,一般矩阵先经过正交相似变化成为Hessenberg矩阵,然后再应用QR方法求特征值和特征向量。它是将矩阵分解成一个正规正交矩阵Q与上三角形矩阵R,所以称为QR分解法,(QR decomposition
)
- 2020-08-31 01:08:10下载
- 积分:1