How can I train SVM in Matlab, with more than 2 classes?
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Hi;
I was trying to use fitcsvm to train and classify my data. However, I notice - correct me if I'm wrong - that fitcsvm could only be used with 2 classes (groups).
My data have more than 2 classes. Is there away to do classify them in matlab?
I did some googling and I read that some recommend to use fitcecoc , while others recommend to use out of the box code multisvm
Please, advise on best approach to go.
Thanking you.
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Image Analyst
2015 年 6 月 29 日
Do you always know how many classes there will be? If so, why not try kmeans?
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Ilya
2015 年 7 月 1 日
multisvm appears to be built on top of the older, slower svmtrain function, while fitcecoc uses the newer, faster C++ implementation. fitcecoc offers more options and gets MathWorks tech support.
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