[Solved] Extract discretization model

aryan_hosseinza

Hi ,

I'd to know if it is possible to extract discretization model (intervals) out of discretization operator ?

What I'd like to do is to find appropriate intervals on dataset A and apply it on dataset B in chi-square or entropy-based discretization methods,


Thanks

awchisholm

Hello

The Discretize operator produces a model that you can apply to other data using the Apply Model operator.

Here's an example.

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<process version="5.3.005">
  <context>
    <input/>
    <output/>
    <macros/>
  </context>
  <operator activated="true" class="process" compatibility="5.3.005" expanded="true" name="Process">
    <process expanded="true">
      <operator activated="true" class="generate_data" compatibility="5.3.005" expanded="true" height="60" name="Generate Data" width="90" x="45" y="75">
        <parameter key="attributes_lower_bound" value="3.0"/>
        <parameter key="attributes_upper_bound" value="7.0"/>
      </operator>
      <operator activated="true" class="discretize_by_bins" compatibility="5.3.005" expanded="true" height="94" name="Discretize" width="90" x="246" y="75">
        <parameter key="number_of_bins" value="3"/>
      </operator>
      <operator activated="true" class="generate_data" compatibility="5.3.005" expanded="true" height="60" name="Generate Data (2)" width="90" x="45" y="300">
        <parameter key="attributes_lower_bound" value="0.0"/>
      </operator>
      <operator activated="true" class="apply_model" compatibility="5.3.005" expanded="true" height="76" name="Apply Model" width="90" x="313" y="300">
        <list key="application_parameters"/>
      </operator>
      <connect from_op="Generate Data" from_port="output" to_op="Discretize" to_port="example set input"/>
      <connect from_op="Discretize" from_port="example set output" to_port="result 1"/>
      <connect from_op="Discretize" from_port="preprocessing model" to_op="Apply Model" to_port="model"/>
      <connect from_op="Generate Data (2)" from_port="output" to_op="Apply Model" to_port="unlabelled data"/>
      <connect from_op="Apply Model" from_port="labelled data" to_port="result 2"/>
      <portSpacing port="source_input 1" spacing="0"/>
      <portSpacing port="sink_result 1" spacing="0"/>
      <portSpacing port="sink_result 2" spacing="0"/>
      <portSpacing port="sink_result 3" spacing="0"/>
    </process>
  </operator>
</process>

I hope that's what you meant.

regards

Andrew

aryan_hosseinza

Thanks a lot ,
Arian