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資源簡介

基于高斯過程分類和回歸的最新代碼,物超所值

資源截圖

代碼片段和文件信息

disp(‘?‘);?disp(‘clear?all?close?all‘);
clear?all?close?all
disp(‘?‘);

disp(‘meanfunc?=?{@meanSum?{@meanLinear?@meanConst}};?hyp.mean?=?[0.5;?1];‘);
meanfunc?=?{@meanSum?{@meanLinear?@meanConst}};?hyp.mean?=?[0.5;?1];
disp(‘covfunc?=?{@covMaterniso?3};?ell?=?1/4;?sf?=?1;?hyp.cov?=?log([ell;?sf]);‘);
covfunc?=?{@covMaterniso?3};?ell?=?1/4;?sf?=?1;?hyp.cov?=?log([ell;?sf]);
disp(‘likfunc?=?@likGauss;?sn?=?0.1;?hyp.lik?=?log(sn);‘);
likfunc?=?@likGauss;?sn?=?0.1;?hyp.lik?=?log(sn);
disp(‘?‘);

disp(‘n?=?20;‘);
n?=?20;
disp(‘x?=?gpml_randn(0.3?n?1);‘);
x?=?gpml_randn(0.3?n?1);
disp(‘K?=?feval(covfunc{:}?hyp.cov?x);‘);
K?=?feval(covfunc{:}?hyp.cov?x);
disp(‘mu?=?feval(meanfunc{:}?hyp.mean?x);‘);
mu?=?feval(meanfunc{:}?hyp.mean?x);
disp(‘y?=?chol(K)‘‘*gpml_randn(0.15?n?1)?+?mu?+?exp(hyp.lik)*gpml_randn(0.2?n?1);‘);
y?=?chol(K)‘*gpml_randn(0.15?n?1)?+?mu?+?exp(hyp.lik)*gpml_randn(0.2?n?1);
?
figure(1)
set(gca?‘FontSize‘?24)
disp(‘?‘);?disp(‘plot(x?y?‘‘+‘‘)‘);
plot(x?y?‘+‘?‘MarkerSize‘?12)
axis([-1.9?1.9?-0.9?3.9])
grid?on
xlabel(‘input?x‘)
ylabel(‘output?y‘)
%print?-depsc?f0.eps
disp(‘?‘);?disp(‘Hit?any?key?to?continue...‘);?pause

disp(‘?‘);
disp(‘nlml?=?gp(hyp?@infExact?meanfunc?covfunc?likfunc?x?y)‘);
nlml?=?gp(hyp?@infExact?meanfunc?covfunc?likfunc?x?y)
disp(‘?‘)

disp(‘z?=?linspace(-1.9?1.9?101)‘‘;‘);
z?=?linspace(-1.9?1.9?101)‘;
disp(‘[m?s2]?=?gp(hyp?@infExact?meanfunc?covfunc?likfunc?x?y?z);‘);
[m?s2]?=?gp(hyp?@infExact?meanfunc?covfunc?likfunc?x?y?z);

figure(2)
set(gca?‘FontSize‘?24);
disp(‘?‘);
disp(‘f?=?[m+2*sqrt(s2);?flipdim(m-2*sqrt(s2)1)];‘);?
f?=?[m+2*sqrt(s2);?flipdim(m-2*sqrt(s2)1)];?
disp(‘fill([z;?flipdim(z1)]?f?[7?7?7]/8);‘);
fill([z;?flipdim(z1)]?f?[7?7?7]/8);

disp(‘hold?on;?plot(z?m);?plot(x?y?‘‘+‘‘)‘)
hold?on;?plot(z?m?‘LineWidth‘?2);?plot(x?y?‘+‘?‘MarkerSize‘?12)
axis([-1.9?1.9?-0.9?3.9])
grid?on
xlabel(‘input?x‘)
ylabel(‘output?y‘)
%print?-depsc?f1.eps
disp(‘?‘);?disp(‘Hit?any?key?to?continue...‘);?pause

disp(‘?‘);
disp(‘covfunc?=?@covSEiso;?hyp2.cov?=?[0;?0];?hyp2.lik?=?log(0.1);‘);
covfunc?=?@covSEiso;?hyp2.cov?=?[0;?0];?hyp2.lik?=?log(0.1);
disp(‘hyp2?=?minimize(hyp2?@gp?-100?@infExact?[]?covfunc?likfunc?x?y)‘);
hyp2?=?minimize(hyp2?@gp?-100?@infExact?[]?covfunc?likfunc?x?y);
disp(‘?‘);

disp(‘exp(hyp2.lik)‘);
exp(hyp2.lik)
disp(‘nlml2?=?gp(hyp2?@infExact?[]?covfunc?likfunc?x?y)‘);
nlml2?=?gp(hyp2?@infExact?[]?covfunc?likfunc?x?y)
disp(‘[m?s2]?=?gp(hyp2?@infExact?[]?covfunc?likfunc?x?y?z);‘);
[m?s2]?=?gp(hyp2?@infExact?[]?covfunc?likfunc?x?y?z);

disp(‘?‘)
figure(3)
set(gca?‘FontSize‘?24)
f?=?[m+2*sqrt(s2);?flipdim(m-2*sqrt(s2)1)];
disp(‘fill([z;?flipdim(z1)]?f?[7?7?7]/8)‘);
fill([z;?flipdim(z1)]?f?[7?7?7]/8)
disp(‘hold?on;?plot(z?m);?plot(x?y?‘‘+‘‘)‘);
hold?on;?plot(z?m?‘LineWidth‘?2);?plot(x?y?

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2011-02-18?16:08??gpml-matlab-v3.1-2010-09-27\
?????文件???????????8??2010-07-23?07:12??gpml-matlab-v3.1-2010-09-27\.octaverc
?????文件????????1789??2010-09-27?16:26??gpml-matlab-v3.1-2010-09-27\Copyright
?????目錄???????????0??2011-02-18?16:08??gpml-matlab-v3.1-2010-09-27\cov\
?????文件????????3547??2010-09-24?15:37??gpml-matlab-v3.1-2010-09-27\cov\covADD.m
?????文件????????1146??2010-09-24?15:37??gpml-matlab-v3.1-2010-09-27\cov\covConst.m
?????文件????????1689??2010-12-22?12:38??gpml-matlab-v3.1-2010-09-27\cov\covFITC.m
?????文件????????1054??2010-09-24?15:37??gpml-matlab-v3.1-2010-09-27\cov\covLIN.m
?????文件????????1545??2010-09-24?15:37??gpml-matlab-v3.1-2010-09-27\cov\covLINard.m
?????文件????????1358??2010-09-24?15:37??gpml-matlab-v3.1-2010-09-27\cov\covLINone.m
?????文件????????2058??2010-09-24?15:37??gpml-matlab-v3.1-2010-09-27\cov\covMask.m
?????文件????????2009??2010-09-24?15:37??gpml-matlab-v3.1-2010-09-27\cov\covMaterniso.m
?????文件????????2062??2010-09-24?15:37??gpml-matlab-v3.1-2010-09-27\cov\covNNone.m
?????文件????????1478??2010-09-24?15:37??gpml-matlab-v3.1-2010-09-27\cov\covNoise.m
?????文件????????1549??2011-01-05?14:07??gpml-matlab-v3.1-2010-09-27\cov\covPeriodic.m
?????文件????????1487??2010-09-24?15:37??gpml-matlab-v3.1-2010-09-27\cov\covPoly.m
?????文件????????2433??2010-09-24?15:37??gpml-matlab-v3.1-2010-09-27\cov\covPPiso.m
?????文件????????2215??2010-09-24?15:37??gpml-matlab-v3.1-2010-09-27\cov\covProd.m
?????文件????????2256??2010-09-24?15:37??gpml-matlab-v3.1-2010-09-27\cov\covRQard.m
?????文件????????1861??2010-09-24?15:37??gpml-matlab-v3.1-2010-09-27\cov\covRQiso.m
?????文件????????1079??2010-09-24?15:37??gpml-matlab-v3.1-2010-09-27\cov\covScale.m
?????文件????????2028??2010-09-24?15:37??gpml-matlab-v3.1-2010-09-27\cov\covSEard.m
?????文件????????1655??2010-09-24?15:37??gpml-matlab-v3.1-2010-09-27\cov\covSEiso.m
?????文件????????1520??2010-09-24?15:37??gpml-matlab-v3.1-2010-09-27\cov\covSEisoU.m
?????文件????????2018??2010-09-24?15:37??gpml-matlab-v3.1-2010-09-27\cov\covSum.m
?????文件????????4870??2011-02-18?16:08??gpml-matlab-v3.1-2010-09-27\covFunctions.m
?????目錄???????????0??2011-02-18?16:08??gpml-matlab-v3.1-2010-09-27\doc\
?????文件????????1093??2011-02-18?16:07??gpml-matlab-v3.1-2010-09-27\doc\changelog
?????文件?????????198??2010-07-23?07:12??gpml-matlab-v3.1-2010-09-27\doc\checkmark.png
?????文件????????3102??2010-07-23?09:04??gpml-matlab-v3.1-2010-09-27\doc\demoClassification.m
?????文件????????4928??2010-09-24?15:37??gpml-matlab-v3.1-2010-09-27\doc\demoRegression.m
............此處省略86個文件信息

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