資源簡(jiǎn)介
SVM分類器的相關(guān)算法和matlab源碼,部分內(nèi)容如下,1.命令函數(shù)部分:
clear;%清屏
clc;
X =load('data.txt');
n = length(X);%總樣本數(shù)量
y = X(:,4);%類別標(biāo)志
X = X(:,1:3);
TOL = 0.0001;%精度要求
C = 1;%參數(shù),對(duì)損失函數(shù)的權(quán)重
b = 0;%初始設(shè)置截距b
Wold = 0;%未更新a時(shí)的W(a)
Wnew = 0;%更新a后的W(a)
for i = 1 : 50%設(shè)置類別標(biāo)志為1或者-1
y(i) = -1;
end
a = zeros(n,1);%參數(shù)a
for i = 1 : n%隨機(jī)初始化a,a屬于[0,C]
a(i) = 0.2;
end
代碼片段和文件信息
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