Description: Matlab编写的最速下降法算法程序，美国一本权威数值计算方面的书上的源程序。-Matlab prepared by the steepest descent algorithm, a numerical calculation authoritative book on the source. Platform: |
Size: 1024 |
Author:李军 |
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Description: 利用最陡下降法仿真实现了自适应滤波均衡器,该方法用硬件能方便实现.-use of the steepest descent method Simulation of the adaptive filter equalizers, the method can be used to facilitate the achievement of hardware. Platform: |
Size: 2048 |
Author:研究生活 |
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Description: ％ COMPDIR Computes a search direction in a subspace defined by Z.
％ Helper function for NLCONST.
％ Returns Newton direction if possible.
％ Returns random direction if gradient is small.
％ Otherwise, returns steepest descent direction.
％ If the steepest descent direction is small it computes a negative
％ curvature direction based on the most negative eigenvalue.
％ For singular matrices, returns steepest descent even if small.- COMPDIR Computes a search direction in a subspace defined by Z. Helper function for NLCONST. Returns Newton direction if possible. Returns random direction if gradient is small. Otherwise, returns steepest descent direction. If the steepest descent direction is small it computes a negative curvature direction based on the most negative eigenvalue. For singular matrices, returns steepest descent even if small. Platform: |
Size: 1024 |
Author:张风 |
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Description: 数值分析中最速下降法插值算法，运行稳定，并且能画出最后的插值曲线-Numerical Analysis of the most steepest descent method interpolation algorithms, running stability, and can draw the final curve interpolation Platform: |
Size: 6144 |
Author:yanghy |
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Description: 最速下降法是一种沿着N维目标函数的负梯度方向搜索最小值的方法。该程序是用最速下降法求无约束最优化解。-Steepest descent method is an N-dimensional objective function along the negative gradient direction of the minimum search method. The program is used steepest descent method for unconstrained optimal resolve. Platform: |
Size: 1024 |
Author:xutianyuan |
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Description: 最小均方（LMS）自适应算法就是一中已期望响应和滤波输出信号之间误差的均方值最小为准的，依据输入信号在迭代过程中估计梯度矢量，并更新权系数以达到最优的自适应迭代算法。LMS算法是一种梯度最速下降方法，其显著的特点是它的简单性。这算法不需要计算相应的相关函数，也不需要进行矩阵运算。-Minimum mean-square (LMS) adaptive algorithm is that one has to respond to the expectations and filtering the output signal of the mean square error between the value of the minimum-based, based on the input signal is estimated in the iterative process of gradient vector, and to update the weights in order to achieve the most Adaptive iterative algorithm gifted. LMS algorithm is a steepest descent gradient method, and its significant features is its simplicity. This algorithm does not require calculation of the corresponding correlation function, nor the need for matrix calculation. Platform: |
Size: 3072 |
Author:闫丰 |
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Description: 最速下降法的MATLAB源程序，不知道是否喜欢-Steepest descent method of the MATLAB source code, I do not know like it or not Platform: |
Size: 4096 |
Author:张晓 |
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Description: 非线性规划中的最速下降法,黄金分割法,阻尼牛顿法,牛顿切线法.-Non-linear programming in the steepest descent method, golden section method, damping Newton s Law, Newton s tangent method. Platform: |
Size: 2048 |
Author: |
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Description: 一个介绍最优化方法课件，很详细。从最简单的一维搜索到共轭梯度，最速下降法等等，都有说明-An optimization method introduction courseware, in great detail. From the simplest one-dimensional search to the conjugate gradient, steepest descent method, etc., all indicate Platform: |
Size: 59392 |
Author:lgl |
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Description: 最优化学习的Matlab程序:包括最速下降法,黄金分割法,曲线拟合等.-Matlab optimization learning process: including the steepest descent method, golden section method, such as curve fitting. Platform: |
Size: 5120 |
Author:lin |
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Description: 利用c语言编写的最速下降法程序，其中包括利用进退法和0.618法进行的一维搜索-Use c language steepest descent method procedures, including the use of advance and retreat method and 0.618 for one-dimensional search Platform: |
Size: 5120 |
Author:icc |
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Description: 计算梯度下降法计算极值，只能找到局部最小点。可以通过调整步长实现全局最小-Calculation of gradient descent method to calculate extreme value, can only find local minimum point. By adjusting the step size can achieve the global minimum Platform: |
Size: 1024 |
Author:宗丹 |
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Description: 图像重建常常被转化为解非线性无约束极值问题, 通过范数极小化推导出共扼梯度法的
一般算法。通过对模拟数据和实际工件断层扫描数据进行图像重建, 估计了算法的有效性, 结果表明, 与最速下降法相比, 此算法更适用于不完全投影数据的图像重建, 在保证重建图像拟合度的同时, 大大提高了重建速度。-Image reconstruction has often been transformed into solving nonlinear unconstrained extremum problem, through the norm minimization derived conjugate gradient method the general algorithm. Through the simulation data and actual data workpiece tomography image reconstruction, it is estimated that the effectiveness of the algorithm, the results showed that compared to steepest descent method, this algorithm is more applicable to incomplete projection data image reconstruction, in ensuring that the reconstructed image fit at the same time, greatly improving the speed of reconstruction. Platform: |
Size: 364544 |
Author:孙翔 |
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Description: 压缩包里包含了无约束优化问题常用的几种求解方法的源程序：变量轮换法（variable_rotation.m）、最速下降法（steepest_descent.m）、修正牛顿法（modified_newton.m）、共轭梯度法（conjugate_gradient.m）。另外，coefficient_matrix.m为目标函数系数获得矩阵，minval.m为最小值计算函数，gradient.m为梯度计算函数-Compression bag contains unconstrained optimization problems of several commonly used method of source: variable rotation Act (variable_rotation.m), steepest descent method (steepest_descent.m), as amended Newton (modified_newton.m), conjugate gradient method (conjugate_gradient.m). In addition, coefficient_matrix.m as the objective function coefficients obtained matrix, minval.m function for the minimum calculation, gradient.m for gradient calculation function Platform: |
Size: 4096 |
Author:闫安心 |
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Description: 采用最速下降法查找最小值，采用H终止准则，计算时间很快，很适合初学者使用-Steepest descent method using the minimum search using H termination criteria, the computation time soon, it is suitable for beginners to use Platform: |
Size: 5120 |
Author:sailorkai |
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Description: 基于LM算法实现的均衡器。采用梯度估计近似实现最陡下降法。给出最后实验误差平方的均值曲线图。有完整的注释。-LM algorithm based on the equalizer. Similar to the realization of the estimated gradient steepest descent method. Finally, given the experimental error of the mean-square curve. Note complete. Platform: |
Size: 1024 |
Author:why98 |
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Search - steepest descent