saving LIBSVM model to disk

KNIME Extensions
1

Hi,

  I've tried all the of SVM nodes  I could find in KNIME, and found that only the 'LIBSVMLearner' node accurately classifies my data (as tested with the 'LIBSVMPredictor' node).  I would like to save this model to disk, so that I can use it in another workflow.  Unfortunately, the 'PMML Writer' node only works with the 'SVM Learner' node, and not LIBSVM.  Does anyone know how I can save a LIBSVM model as PMML or any other format?  

Regards,

--George

 

 

 

2

Hi George,

there is a model writer node (and reader) in the IO Category. It generates a zip file with the information about the model. It works with every Knime Model Port.

Cheers, Iris

3

Unfortunately, the file created by the model writer node is not in PMML format.  Does anyone else have a solution to this?  I hit the same problem for the same reason as George.

4

I had some code that could convert libsvm models to PMML, though those are not released anywhere. Maybe R developers have already have some package that can perform that.

I have to note that not all libsvm models can be represented -imho- in PMML and the way I have transformed, it was not compatible with the SVMPredictor node's expected PMML model.