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[Mathimatics-Numerical algorithmsLSParaId

Description: 在matlab中,最小二乘法,模型参数确定和参数检验- In matlab, least squares method, the model parameter determined and the parameter examines
Platform: | Size: 1024 | Author: 张元锋 | Hits:

[AI-NN-PRBPmatlab

Description: matlab使用BP网络的例子,使用Levenberg Marquardt算法提高训练速度,效果不错-use Matlab BP example, the use of Levenberg Marquardt algorithm to improve training speed, good results
Platform: | Size: 4096 | Author: 汤泽世 | Hits:

[File FormatNEURAL+NETWORK

Description: bp神经网络算法是解决最优化问题的先进算法之一,本论文讨论了神经网络中使用最为广泛的前馈神经网络。其网络权值学习算法中影响最大的就是误差反向传播算法(back-propagation简称BP算法)。BP算法存在局部极小点,收敛速度慢等缺点。基于优化理论的Levenberg-Marquardt算法忽略了二阶项。该文讨论当误差不为零或者不为线性函数即二阶项S(W)不能忽略时的Hesse矩阵的近似计算,进而训练网络。-bp neural network algorithm to solve optimization problems, one of the advanced algorithm, the paper discusses the neural network in the most widely used feed-forward neural network. Its network weights learning algorithm in the greatest impact is the error back-propagation algorithm (back-propagation algorithm referred to as BP). BP algorithm for the existence of local minimum points, such as the shortcomings of slow convergence. Optimization theory based on the Levenberg-Marquardt algorithm ignores the second-order item. In this paper, the discussion when the error is not zero or not that is second-order linear function of S (W) can not be ignored when the Hesse matrix of approximate calculation, and then training the network.
Platform: | Size: 19456 | Author: 刘慧 | Hits:

[Special EffectsLevenberg-Marquardt

Description: Levenberg-Marquardt优化单应性矩阵,也可经过修改用于相机标定参数的优化-Levenberg-Marquardt optimization homography can also be modified for optimization of camera calibration parameters
Platform: | Size: 2048 | Author: 卫东 | Hits:

[AI-NN-PRVC++BP

Description: 本程序是BP算法的演示程序, 其中的Levenberg-Marquardt算法具有实用价值. 一、网络训练 程序默认状态是样本训练状态,现将样本训练状态下的如何训练网络进行说明: 1.系统精度: 定义系统目标精度,根据需要定义网络训练误差精度.误差公式是对训练出网络的输出层节点和实际的网络输出结果求平方差的和. 最大训练次数: 默认为10000次,根据需要调整,如果到达最大训练次数网络还未能达到目标精度,程序退出. 3.步长: 默认为0.01,由于采用变步长算法,一般不需人工设置. 4.输入层数目: 人工神经网络的输入层神经元的节点数目. 5.隐含层数目: 人工神经网络的隐含层神经元的节点数目. 6.输出层数目: 人工神经网络的输出层神经元的节点数目. 7.训练算法: 强烈建议选取Levenberg-Marquardt算法,该算法经过测试比较稳定. 8.激活函数: 不同的网络激活函数表现的性能不同,可根据实际情况选择. 9.样本数据的处理: 由于程序没有实现归一化功能, 因此用来训练的样本数据首先要归一化后才能进行训练.
Platform: | Size: 344064 | Author: starboy_2nd | Hits:

[AI-NN-PRmarq

Description: % Train a two layer neural network with the Levenberg-Marquardt % method. % % If desired, it is possible to use regularization by % weight decay. Also pruned (ie. not fully connected) networks can % be trained. % % Given a set of corresponding input-output pairs and an initial % network, % [W1,W2,critvec,iteration,lambda]=marq(NetDef,W1,W2,PHI,Y,trparms) % trains the network with the Levenberg-Marquardt method. % % The activation functions can be either linear or tanh. The % network architecture is defined by the matrix NetDef which % has two rows. The first row specifies the hidden layer and the % second row specifies the output layer.- Train a two layer neural network with the Levenberg-Marquardt method. If desired, it is possible to use regularization by weight decay. Also pruned (ie. not fully connected) networks can be trained. Given a set of corresponding input-output pairs and an initial network, [W1, W2, critvec, iteration, lambda] = marq (NetDef, W1, W2, PHI, Y, trparms) trains the network with the Levenberg-Marquardt method . The activation functions can be either linear or tanh. The network architecture is defined by the matrix NetDef which has two rows. The first row specifies the hidden layer and the second row specifies the output layer.
Platform: | Size: 3072 | Author: 张镇 | Hits:

[matlabRunningLM

Description: matlab中使用LM训练方法计算XOR,3-bit Parity,regression等问题的收敛速度,比较其收敛率。-using LEVENBERG MARQUARDT in matlab to compute convergence rate
Platform: | Size: 1024 | Author: sean | Hits:

[OtherLMprocess

Description: Levenberg-Marquardt优化-Levenberg-Marquardt optimization
Platform: | Size: 1024 | Author: cuiyu | Hits:

[matlablm_matlab

Description: The Levenberg–Marquardt Method
Platform: | Size: 2048 | Author: 李娜 | Hits:

[matlabLevenbergMarquardt_matlabcode_fromLourakis

Description: The Levenberg–Marquardt Method writed by Lourakis
Platform: | Size: 93184 | Author: 李娜 | Hits:

[matlabLevenberg-Marquardt

Description: Levenberg-Marquardt 信赖域方法求解非线性方程组的Matlab程序-Levenberg-Marquardt trust region method for solving nonlinear equations of the Matlab program
Platform: | Size: 1024 | Author: 蔚无 | Hits:

[Mathimatics-Numerical algorithmsLMFnlsq

Description: 从国外大学上下的Levenberg算法程序-From foreign universities Levenberg algorithm program from top to bottom
Platform: | Size: 877568 | Author: 李冰 | Hits:

[AlgorithmLM

Description: Levenberg-Marqardt最优迭代算法-Levenberg-Marqardt optimal iterative algorithm
Platform: | Size: 1024 | Author: empty | Hits:

[Special EffectsLevenbergMarquardtalgorithmMATlABcodewithtrustregi

Description: 这是一个实现Levenberg-Marquardt算法的MATlAB代码,总共4个文件f.m产生目标评价函数,l_m_trust.m是进行L_M算法迭代处理,trtestlm.m是采用置信域方法决定更新参数和置信系数,而测试函数入口时test_lm.m,每个函数里面有详细的中文注释,希望能给你的工作带来帮助!-This is an implementation of Levenberg-Marquardt algorithm MATlAB code, generated a total of four documents fm objective evaluation function, l_m_trust.m is iterative processing algorithm for L_M, trtestlm.m Confidence region method is used decided to update the parameters and confidence coefficient and the test function entrance test_lm.m
Platform: | Size: 4096 | Author: 秦论剑 | Hits:

[matlabprogramme_I

Description: a back propagation neural network matlab code, learning by levenberg–marquardt algorithm
Platform: | Size: 1024 | Author: oussama belghith | Hits:

[matlabLMFsolve

Description: 这个程序实现了Levenberg Marquardt Fletcher(LMF)算法,并用于非线性最小二乘的计算。用于在一个非线性多项式组成的矛盾/超定方程组中,找到最优的解。-This program implements the Levenberg Marquardt Fletcher (LMF) algorithm, and used nonlinear least squares calculations. Formed in a non-linear polynomial for the conflict/overdetermined equations, find the optimal solution.
Platform: | Size: 4096 | Author: 蒋常富 | Hits:

[matlabLevenberg-Marquardt

Description: 这里有个Levenberg-Marquardt算法的程序和ppt介绍-Here' s a Levenberg-Marquardt algorithm described procedures and ppt
Platform: | Size: 2695168 | Author: 王毅 | Hits:

[matlabA-Memo-on-How-to-Use-the-Levenberg-Marquardt-Algo

Description: a memo how to right a matlab code
Platform: | Size: 64512 | Author: abdullah | Hits:

[Successful incentiveLevenberg-Marquardt-Method

Description: Levenberg–Marquardt Method,LM拟合优化算法的Matlab平台.m文件的实现-Levenberg–Marquardt Method. The inplementation of matlab.m
Platform: | Size: 2048 | Author: zeng | Hits:

[matlabparameter

Description: 采用Levenberg-Marquardt算法实现函数的参数估计(Parameter estimation of function by using Levenberg-Marquardt algorithm)
Platform: | Size: 1024 | Author: lnkingjtu | Hits:
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