필터 지우기
필터 지우기

Is it possible to have control on C parameter of SVM in Matlab ?

조회 수: 1 (최근 30일)
n
n 2011년 2월 15일
Hi,
I have seen the following question and answer:
http://mathforum.org/kb/message.jspa?messageID=3735688&tstart=0
but it seems to be too complicated! are there any other ways perhaps in newer versions of bioinoformatic toolbox to have control on C parameter of SVM? or somehow have control on how SVM parameters are being optimized?
Thanks

답변 (1개)

n
n 2011년 2월 17일
Here is an example of using 'QuadProg_Opts' option in svmtrain:
myoption = optimset('PrecondBandWidth',2);
% this is the ub parameter of quadprog I guess
svmStruct =svmtrain(train_data,train_label,'Kernel_Function','rbf','RBF_Sigma', 0.5,'QuadProg_Opts', myoptions);
But the C value seem to be relative to box constrain as used in the example of svmtrain:
svmStruct = svmtrain(data(train,:),groups(train),...
'showplot',true,'boxconstraint',1e6);

카테고리

Help CenterFile Exchange에서 Get Started with MATLAB에 대해 자세히 알아보기

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by