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workflowwekadata-mining

Attach a filtered input in Weka datamining processes workflow

I'm creating a datamining process with Weka, so I have added an

-ArffLoader

selecting the datasource file, linking in the workflow this to a

-ClassAssigner

before pass the input to a classifier I need to use some filters, so I have linked the ClassAssigner out to a filter series. Now the problem is that seems I cannot link the last filter out to the classifier, when I click with right click of the mouse on dataset when I'm on NominalToString filter to attach its outo to BayesNet classifier, Weka show the arrow but this doesn't link to classifier. I have tried with different filter series, always the same problem.

What is wrong in the shown section of my workflow?

enter image description here

Solution

  • Before the classifier you must add a component for the training set creation.

    Try to attach the filtered input to a CrossValidationFoldMaker block (you can pick it from evaluation section) and link its out to BayesNet classifiers.