Exporting perfomance and images _optimizing

blueearth

1-is there any oprators which export performances and accuracies and images directly into exel and jpg files recpectivley?
2-can optimizing oprators connect to modeling oprators directly and optimize their functions automaticly before they start oprating datas?

MariusHelf

Hi,

I have two short answers as a teaser, one hint and then the long answer: ;-)

Short answers:
1-performances yes, images partly
2-yes

Hint: next time, please open a new thread for each question, that keeps the forum structure cleaner and allows more focused discussion.

And now the long answers:
You probably know the Log operator. With that operator, you can log values and parameters of previously executed operators. By default, you can't export the output of the Log operator, but you can use a trick: the Log to Data operator converts the output of the Log operator into an example set, which can then be exported to excel with Write Excel. To export images and graphs, you should have a look at the reporting extension.

We have several optimization operators, depending on what you want to achieve: Optimize Parameters optimizes parameters of models, e.g. the margin width of an SVM or the depth and pruning options of a Decision Tree. The various Optimize Selection flavors in the operator group Data Transformation/Attribute Set Reduction/Selection/Optimization perform a feature selection.

The common property of all these operators is, that they contain an inner process (open it by double clicking the operator after dragging it onto the grid), which usually trains a model, evaluates it (e.g. via X-Validation), and measures its performance. The performance is then passed to the optimization operator by connecting its output to the "per" output on the right side of the optimize operators inner process.

Please have a look at the following process to see all mentioned operators working together.

Best, Marius

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<process version="5.2.002">
  <context>
    <input/>
    <output/>
    <macros/>
  </context>
  <operator activated="true" class="process" compatibility="5.2.002" expanded="true" name="Process">
    <process expanded="true" height="507" width="983">
      <operator activated="true" class="retrieve" compatibility="5.2.002" expanded="true" height="60" name="Retrieve" width="90" x="76" y="24">
        <parameter key="repository_entry" value="//Samples/data/Sonar"/>
      </operator>
      <operator activated="true" class="optimize_parameters_grid" compatibility="5.2.002" expanded="true" height="94" name="Optimize Parameters (Grid)" width="90" x="246" y="30">
        <list key="parameters">
          <parameter key="SVM.C" value="[0.001;1;10;logarithmic]"/>
        </list>
        <process expanded="true" height="507" width="983">
          <operator activated="true" class="x_validation" compatibility="5.2.002" expanded="true" height="112" name="Validation" width="90" x="112" y="30">
            <process expanded="true" height="507" width="466">
              <operator activated="true" class="support_vector_machine" compatibility="5.2.002" expanded="true" height="112" name="SVM" width="90" x="112" y="30">
                <parameter key="C" value="1.0"/>
              </operator>
              <connect from_port="training" to_op="SVM" to_port="training set"/>
              <connect from_op="SVM" from_port="model" to_port="model"/>
              <portSpacing port="source_training" spacing="0"/>
              <portSpacing port="sink_model" spacing="0"/>
              <portSpacing port="sink_through 1" spacing="0"/>
            </process>
            <process expanded="true" height="507" width="466">
              <operator activated="true" class="apply_model" compatibility="5.2.002" expanded="true" height="76" name="Apply Model" width="90" x="45" y="30">
                <list key="application_parameters"/>
              </operator>
              <operator activated="true" class="performance" compatibility="5.2.002" expanded="true" height="76" name="Performance" width="90" x="246" y="30"/>
              <connect from_port="model" to_op="Apply Model" to_port="model"/>
              <connect from_port="test set" to_op="Apply Model" to_port="unlabelled data"/>
              <connect from_op="Apply Model" from_port="labelled data" to_op="Performance" to_port="labelled data"/>
              <connect from_op="Performance" from_port="performance" to_port="averagable 1"/>
              <portSpacing port="source_model" spacing="0"/>
              <portSpacing port="source_test set" spacing="0"/>
              <portSpacing port="source_through 1" spacing="0"/>
              <portSpacing port="sink_averagable 1" spacing="0"/>
              <portSpacing port="sink_averagable 2" spacing="0"/>
            </process>
          </operator>
          <operator activated="true" class="log" compatibility="5.2.002" expanded="true" height="76" name="Log" width="90" x="380" y="30">
            <list key="log">
              <parameter key="C" value="operator.SVM.parameter.C"/>
              <parameter key="performance" value="operator.Validation.value.performance"/>
              <parameter key="stdev" value="operator.Validation.value.deviation"/>
            </list>
          </operator>
          <connect from_port="input 1" to_op="Validation" to_port="training"/>
          <connect from_op="Validation" from_port="averagable 1" to_op="Log" to_port="through 1"/>
          <connect from_op="Log" from_port="through 1" to_port="performance"/>
          <portSpacing port="source_input 1" spacing="0"/>
          <portSpacing port="source_input 2" spacing="0"/>
          <portSpacing port="sink_performance" spacing="0"/>
          <portSpacing port="sink_result 1" spacing="0"/>
        </process>
      </operator>
      <operator activated="true" breakpoints="after" class="log_to_data" compatibility="5.2.002" expanded="true" height="94" name="Log to Data" width="90" x="447" y="30">
        <parameter key="log_name" value="Log"/>
      </operator>
      <operator activated="true" class="write_excel" compatibility="5.2.002" expanded="true" height="76" name="Write Excel" width="90" x="648" y="30">
        <parameter key="excel_file" value="C:\Users\mhelf\Desktop\test.xls"/>
      </operator>
      <connect from_op="Retrieve" from_port="output" to_op="Optimize Parameters (Grid)" to_port="input 1"/>
      <connect from_op="Optimize Parameters (Grid)" from_port="performance" to_op="Log to Data" to_port="through 1"/>
      <connect from_op="Log to Data" from_port="exampleSet" to_op="Write Excel" to_port="input"/>
      <connect from_op="Write Excel" from_port="through" 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>