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  #1  
Old 06-01-2012, 08:37 AM
dbl001 dbl001 is offline
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Default Multi-Class Classifier

Hi,

Can support vector machines be used as multi-class classifiers?

Thanks in Advance
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  #2  
Old 06-01-2012, 12:09 PM
yassin.ezbakhe yassin.ezbakhe is offline
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Default Re: Multi-Class Classifier

LIBSVM supports multi-class classification. If you're using Python, you can use scikit-learn, which under the hood uses LIBSVM; for an example, go here: http://scikit-learn.sourceforge.net/...classification
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Old 08-21-2013, 05:47 PM
hsolo hsolo is offline
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Default Re: Multi-Class Classifier

Not a direct followup to this question but I was wondering how Multinomial Softmax (generalization of logistic for multiple classes) compares with SVMs for multi-class problem, in practice.

One difference is the softmax directly gives the probability whereas SVM probabilities are 'indirect'

I was wondering how does this comparison pan out in practice?
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Old 09-12-2015, 08:16 PM
rimidan rimidan is offline
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Default Re: Multi-Class Classifier

That is an interesting question. Maybe yassin is still around and has an answer to that.
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  #5  
Old 09-16-2015, 02:56 AM
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htlin htlin is offline
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Default Re: Multi-Class Classifier

Quote:
Originally Posted by hsolo View Post
Not a direct followup to this question but I was wondering how Multinomial Softmax (generalization of logistic for multiple classes) compares with SVMs for multi-class problem, in practice.

One difference is the softmax directly gives the probability whereas SVM probabilities are 'indirect'

I was wondering how does this comparison pan out in practice?
In my experience one-versus-all linear SVM and multinomial logistic regression are somewhat comparable in practice.
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