-
最速下降法
说明： 最速下降法是迭代法的一种,可以用于求解最小二乘问题(线性和非线性都可以)。在求解机器学习算法的模型参数，即无约束优化问题时，梯度下降（Gradient Descent）是最常采用的方法之一，另一种常用的方法是最小二乘法。在求解损失函数的最小值时，可以通过梯度下降法来一步步的迭代求解，得到最小化的损失函数和模型参数值。反过来，如果我们需要求解损失函数的最大值，这时就需要用梯度上升法来迭代了。在机器学习中，基于基本的梯度下降法发展了两种梯度下降方法，分别为随机梯度下降法和批量梯度下降法。(The steepest descent method is a kind of iterative method, which can be used to solve the least squares problem (both linear and nonlinear). In solving the model parameters of machine learning algorithm, that is, unconstrained optimization, gradient descent is one of the most commonly used methods, and the other is the least square method. When solving the minimum value of loss function, the gradient descent method can be used step by step to get the minimum value of loss function and model parameters. Conversely, if we need to solve the maximum value of the loss function, then we need to use the gradient rise method to iterate. In machine learning, two kinds of ladders are developed based on the basic gradient descent method)
- 2019-11-24 13:06:03下载
- 积分：1
-
Mathematica
mathematica基本功能的介绍和基本函数应用的介绍，非常实用(introduction to mathematica)
- 2010-09-08 23:05:50下载
- 积分：1
-
SpeechLPC
基于MATLAB的语音信号的LPC分析，带有GUI界面和测试数据。(MATLAB-based voice signal the LPC, with GUI interface and test data.)
- 2006-12-13 11:57:12下载
- 积分：1
-
PPM
matlab ppm调制的系统仿真，测试误码率等，用高斯信道来实现。(matlab ppm modulation system simulation, testing, error rate, with Gaussian channel to achieve.)
- 2013-11-20 19:58:31下载
- 积分：1
-
t1_3_phase_full_waveform0
三相桥式整流电路的simulink仿真
源码(The simulink simulation source of the three-phase bridge rectifier circuit)
- 2012-11-04 21:10:36下载
- 积分：1
-
PL
说明： 自由空间路径损耗模型
羽田孜路径损耗模型
IEEE802.16d的路径损耗模型
距离/正常阴影路径损耗模型(free space path loss model
Hata path loss model
IEEE 802.16d path loss model
distance/normal shadowing path loss models)
- 2015-04-06 13:34:58下载
- 积分：1
-
qshiftgen
关于复数小波的matlab代码，用于图像去噪、图像增强等(of Complex Wavelet the Matlab code for Image Denoising, image enhancement, etc.)
- 2007-03-08 17:18:55下载
- 积分：1
-
GoldSequece
Gold 序列产生程序，产生序列的长度n，主要用于扩频代码中(gold sequence)
- 2014-10-21 16:20:11下载
- 积分：1
-
optim
多变量非线性优化模型求解，对约束条件建立m文件(Multi-variable nonlinear optimization model for solving the establishment of restrictive conditions on m file)
- 2009-04-18 21:45:14下载
- 积分：1
-
helmersson
this is for lmi lmi problems
- 2010-01-12 14:51:35下载
- 积分：1
