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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
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Matlab-TreeSearch
breadthfirstsearch FOR SEARCH ROAD
- 2013-10-17 00:24:49下载
- 积分:1
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HUHUHU
可以试试对毕业设计有没有中意的作用,做的是手势识别系统的设计,matlab中文论坛看到,可以试试(You can try the graduation design no favorite role, do gesture recognition system design, matlab Chinese forum to see, you can try)
- 2013-04-27 17:51:58下载
- 积分:1
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Laser
仿真激光的产生和传播 很管用的 不信你试试(aghfghfh)
- 2009-10-25 22:42:53下载
- 积分:1
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smartantenna
Matlab智能天线算法(包含电磁场基本原理、天线阵基本原理、随机过程、传播信道特性、到达角估计、自适应波束成形等的仿真代码)(Smart antennas for wireless communication(MATLAB))
- 2021-04-22 19:38:48下载
- 积分:1
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123
推算表,还没有写完,下面没有了思路了,我会继续写完他的.(Projection table, has not yet finished, the following no idea, and I will continue to finish him.)
- 2009-12-28 15:50:13下载
- 积分:1
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inp
此程序是LMFnlsq2.rar主程序调用的一个函数,此函数不可或缺,需要联合使用。(This program is LMFnlsq2. Rar main program calls a function, this function is indispensable, need to use.)
- 2014-11-12 22:18:31下载
- 积分:1
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2-3@
a classification base on Baysian classifier , I did pca, lda, normalization on features either
- 2011-06-13 14:59:12下载
- 积分:1
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Motion-Detection
matlab video motion detection and tracking
- 2013-11-11 22:37:02下载
- 积分:1
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6
说明: 例题全部代码. 薛定宇, 陈阳泉. 高等应用数学问题的Matlab求解.(All the code examples. Xue Dingyu, Chen Yangquan. MATLAB to solve higher applied mathematical problems.)
- 2011-04-29 10:15:41下载
- 积分:1