"[SOLVED] Nested Operators in Weka don't have ports to connect?"

earmijo

I've been playing with Ensemble Models lately. When I try to use the "Meta" operators from Weka (say for instance W-Vote) I don't see inside the operators the input or output ports/connectors. Am I missing something basic?

Thanks in advance for any help

Ernesto

Nils_Woehler

Hi Ernesto,

Weka Ensemble Models work with Weka classifiers only. You dont have to connect the classifiers, they will get the input automaticly. Here is an example:

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<process version="5.1.014">
  <context>
    <input/>
    <output/>
    <macros/>
  </context>
  <operator activated="true" class="process" compatibility="5.1.014" expanded="true" name="Process">
    <process expanded="true" height="579" width="708">
      <operator activated="true" class="retrieve" compatibility="5.1.014" expanded="true" height="60" name="Retrieve" width="90" x="150" y="176">
        <parameter key="repository_entry" value="//Samples/data/Sonar"/>
      </operator>
      <operator activated="true" class="weka:W-Vote" compatibility="5.1.001" expanded="true" height="76" name="W-Vote" width="90" x="313" y="165">
        <process expanded="true" height="639" width="950">
          <operator activated="true" class="weka:W-KStar" compatibility="5.1.001" expanded="true" height="76" name="W-KStar" width="90" x="363" y="216"/>
        </process>
      </operator>
      <connect from_op="Retrieve" from_port="output" to_op="W-Vote" to_port="training set"/>
      <connect from_op="W-Vote" from_port="model" to_port="result 1"/>
      <portSpacing port="source_input 1" spacing="0"/>
      <portSpacing port="sink_result 1" spacing="0"/>
      <portSpacing port="sink_result 2" spacing="0"/>
    </process>
  </operator>
</process>

Regards,
Nils

earmijo

That was embarrasingly (for me :-)) simple. Thank you very much Nils.