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SVM
用matlab实现了SVM算法,并且对两类点进行了分类,给出了图形化的结果。(SVM algorithm is implemented using matlab, and two points on the classification, given the graphical result.)
- 2010-07-25 16:04:10下载
- 积分:1
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MATLAB
一、 牛顿-拉夫逊法概要
首先对一般的牛顿-拉夫逊法作一简单说明。已知一个变量X的函数
(4-6)
解此方程式时,由适当的近似值X(0)出发,根据 (4-7)
反复进行计算,当X(n)满足适当的收敛判定条件时就是(4-6)式的根。这样的方法就是所谓的牛顿-拉夫逊法。
式(4-7)就是取第n次近似解X(n)在曲线 上的点 处的切线与X轴的交点作下一次X(n+1)值的方法。参考图4-2(a)。在这一方法中为了能收敛于真解,初值X(0)的选取及函数f(X)必须满足适当的条件,如图4-2(b)所示的那种情况就不能收敛或收敛到别的根上去。
这一方法还可以做下面的解释,设第n次迭代得到的解与真值之差,即 的误差为 时,则
(4-8)
把 在 附近对 用泰勒级数展开
(4-9)
上式略去 以下的项
(4-10)
的误差可近似由上式计算出来
图4-2
(4-11)
比较式(4-7)和(4-11),可以看出牛顿-拉夫逊法的修正量和 的误差的一次项相等。
用同样的方法考虑,给出对n个变量 (:Because of the importance and complexity of power system, better algorithm and programme language
is very important . An interior point method based on the perturbed Karush2Kuhn2Tucker (KKT) condition is pre2
sented in this paper , where the method and process for the optimal power flow is treated through the Matlab’s
symbolic math toolbox and Mfunction is also presented. Using the symbolic code , it can improve the adaptability
of the programme dramatically. The advantage is that , what we need to do is change the model expression. We
can make use of the symbolic programme to check our programme while we write the Mfunctions. Using the Mat2
lab , we find the optimal solutions and calculate quickly and efficiently. It has proposed the powerful and unique
functions of Matlab in the optimization and calculation for power system.
Key words :power system symbolic calculation optimal power flow interior point method)
- 2020-07-08 16:38:56下载
- 积分:1
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matlab
MATIAB各种经典算法的程序,包括数据分析、绘图等等(MATLAB)
- 2009-05-07 14:48:43下载
- 积分:1
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Neural-network
Very good paper on Neural network algorithm
- 2011-09-22 09:37:28下载
- 积分:1
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treegraf
说明: 用于二叉树寻索,找出在一个确定的矩形中,数量最大的圆或者矩形(treegraf used to find the most round or rectangle in a big rectangle)
- 2020-06-16 11:40:01下载
- 积分:1
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PSo
基本的粒子群算法程序,很好的程序 ,用matlab编写的(The basic particle swarm optimization procedure, a good program, written using matlab)
- 2012-05-24 15:49:36下载
- 积分:1
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sliding
sliding mode atiti. for help you in programming
- 2011-05-23 22:00:50下载
- 积分:1
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Bilateral-Filtering
Bilateral Filtering软件经过本人认真调试,能够直接使用。希望大家喜欢。(Bilateral Filtering software after I carefully debugging, can be used directly. Hope you like it.)
- 2011-12-01 20:01:37下载
- 积分:1
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05ZHDMKZXT
基于准滑动模态的滑模控制
准滑动模态系统仿真实例(Quasi-sliding mode based Sliding Mode Control
Quasi-sliding mode system simulation example)
- 2015-02-27 17:44:50下载
- 积分:1
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Laplace_resolution_simplied
有限差分法中简单迭代法计算场域节点的应用(Finite difference method in a simple iterative method to calculate the application node)
- 2011-12-25 23:21:55下载
- 积分:1