How to store performance metrics from each 10 fold cross validation?

Hi Archana,

i think there are several ways to do this. A quick one is to store each fold in the repo with a different name. Attached is a processes doing it. It uses the macro %{a} which is always the number of executions of each operators. Be careful if you use this in a loop/optimize. You need to store the process in the repo in order to make it work.

~Martin

<?xml version="1.0" encoding="UTF-8"?><process version="7.3.001">
  <context>
    <input/>
    <output/>
    <macros/>
  </context>
  <operator activated="true" class="process" compatibility="7.3.001" expanded="true" name="Process">
    <process expanded="true">
      <operator activated="true" class="retrieve" compatibility="7.3.001" expanded="true" height="68" name="Retrieve Golf" width="90" x="112" y="85">
        <parameter key="repository_entry" value="//Samples/data/Golf"/>
      </operator>
      <operator activated="true" class="concurrency:cross_validation" compatibility="7.3.001" expanded="true" height="145" name="Cross Validation" width="90" x="246" y="85">
        <process expanded="true">
          <operator activated="true" class="parallel_decision_tree" compatibility="7.3.001" expanded="true" height="82" name="Decision Tree" width="90" x="246" y="34"/>
          <connect from_port="training set" to_op="Decision Tree" to_port="training set"/>
          <connect from_op="Decision Tree" from_port="model" to_port="model"/>
          <portSpacing port="source_training set" spacing="0"/>
          <portSpacing port="sink_model" spacing="0"/>
          <portSpacing port="sink_through 1" spacing="0"/>
        </process>
        <process expanded="true">
          <operator activated="true" class="apply_model" compatibility="7.3.001" expanded="true" height="82" name="Apply Model" width="90" x="179" y="34">
            <list key="application_parameters"/>
          </operator>
          <operator activated="true" class="performance_classification" compatibility="7.3.001" expanded="true" height="82" name="Performance" width="90" x="313" y="34">
            <list key="class_weights"/>
          </operator>
          <operator activated="true" class="store" compatibility="7.3.001" expanded="true" height="68" name="Store" width="90" x="447" y="34">
            <parameter key="repository_entry" value="../results/performance fold %{a}"/>
          </operator>
          <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_op="Store" to_port="input"/>
          <connect from_op="Store" from_port="through" to_port="performance 1"/>
          <portSpacing port="source_model" spacing="0"/>
          <portSpacing port="source_test set" spacing="0"/>
          <portSpacing port="source_through 1" spacing="0"/>
          <portSpacing port="sink_test set results" spacing="0"/>
          <portSpacing port="sink_performance 1" spacing="0"/>
          <portSpacing port="sink_performance 2" spacing="0"/>
        </process>
      </operator>
      <connect from_op="Retrieve Golf" from_port="output" to_op="Cross Validation" to_port="example set"/>
      <portSpacing port="source_input 1" spacing="0"/>
      <portSpacing port="sink_result 1" spacing="0"/>
    </process>
  </operator>
</process>

Hi Martin,

Thank you for quick reply. I imported attached processes and saved in repo but it is not storing set of values for each fold in validation.

Attached the error message while executing process.

Hey,

it should create a new folder results with the performance vectors, did you check for this?

~Martin

And me again,

alternativly you can use another way to do this missusing the App Objects. Just have a look.

~Martin

<?xml version="1.0" encoding="UTF-8"?><process version="7.3.001">
  <context>
    <input/>
    <output/>
    <macros/>
  </context>
  <operator activated="true" class="process" compatibility="7.3.001" expanded="true" name="Process">
    <process expanded="true">
      <operator activated="true" class="retrieve" compatibility="7.3.001" expanded="true" height="68" name="Retrieve Golf" width="90" x="112" y="85">
        <parameter key="repository_entry" value="//Samples/data/Golf"/>
      </operator>
      <operator activated="true" class="concurrency:cross_validation" compatibility="7.3.001" expanded="true" height="145" name="Cross Validation" width="90" x="246" y="85">
        <process expanded="true">
          <operator activated="true" class="parallel_decision_tree" compatibility="7.3.001" expanded="true" height="82" name="Decision Tree" width="90" x="246" y="34"/>
          <connect from_port="training set" to_op="Decision Tree" to_port="training set"/>
          <connect from_op="Decision Tree" from_port="model" to_port="model"/>
          <portSpacing port="source_training set" spacing="0"/>
          <portSpacing port="sink_model" spacing="0"/>
          <portSpacing port="sink_through 1" spacing="0"/>
        </process>
        <process expanded="true">
          <operator activated="true" class="apply_model" compatibility="7.3.001" expanded="true" height="82" name="Apply Model" width="90" x="179" y="34">
            <list key="application_parameters"/>
          </operator>
          <operator activated="true" class="performance_classification" compatibility="7.3.001" expanded="true" height="82" name="Performance" width="90" x="313" y="34">
            <list key="class_weights"/>
          </operator>
          <operator activated="false" class="store" compatibility="7.3.001" expanded="true" height="68" name="Store" width="90" x="380" y="289">
            <parameter key="repository_entry" value="../results/performance fold %{a}"/>
          </operator>
          <operator activated="true" class="multiply" compatibility="7.3.001" expanded="true" height="103" name="Multiply" width="90" x="447" y="85"/>
          <operator activated="true" class="handle_exception" compatibility="7.3.001" expanded="true" height="82" name="Handle Exception" width="90" x="581" y="34">
            <process expanded="true">
              <operator activated="false" class="remember" compatibility="7.3.001" expanded="true" height="68" name="Remember" width="90" x="447" y="34">
                <parameter key="name" value="perf"/>
                <parameter key="io_object" value="IOObjectCollection"/>
              </operator>
              <operator activated="true" class="recall_from_app" compatibility="7.3.001" expanded="true" height="82" name="Recall from App" width="90" x="45" y="85">
                <parameter key="name" value="perf"/>
              </operator>
              <operator activated="true" class="collect" compatibility="7.3.001" expanded="true" height="103" name="Collect" width="90" x="179" y="34">
                <parameter key="unfold" value="true"/>
              </operator>
              <operator activated="true" class="publish_to_app" compatibility="7.3.001" expanded="true" height="68" name="Publish to App" width="90" x="313" y="34">
                <parameter key="name" value="perf"/>
              </operator>
              <connect from_port="in 1" to_op="Collect" to_port="input 1"/>
              <connect from_op="Recall from App" from_port="result" to_op="Collect" to_port="input 2"/>
              <connect from_op="Collect" from_port="collection" to_op="Publish to App" to_port="store"/>
              <connect from_op="Publish to App" from_port="stored" to_port="out 1"/>
              <portSpacing port="source_in 1" spacing="0"/>
              <portSpacing port="source_in 2" spacing="0"/>
              <portSpacing port="sink_out 1" spacing="0"/>
              <portSpacing port="sink_out 2" spacing="0"/>
            </process>
            <process expanded="true">
              <operator activated="true" class="publish_to_app" compatibility="7.3.001" expanded="true" height="68" name="Publish to App (2)" width="90" x="112" y="34">
                <parameter key="name" value="perf"/>
              </operator>
              <connect from_port="in 1" to_op="Publish to App (2)" to_port="store"/>
              <connect from_op="Publish to App (2)" from_port="stored" to_port="out 1"/>
              <portSpacing port="source_in 1" spacing="0"/>
              <portSpacing port="source_in 2" spacing="0"/>
              <portSpacing port="sink_out 1" spacing="0"/>
              <portSpacing port="sink_out 2" spacing="0"/>
            </process>
          </operator>
          <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_op="Multiply" to_port="input"/>
          <connect from_op="Multiply" from_port="output 1" to_op="Handle Exception" to_port="in 1"/>
          <connect from_op="Multiply" from_port="output 2" to_port="performance 1"/>
          <portSpacing port="source_model" spacing="0"/>
          <portSpacing port="source_test set" spacing="0"/>
          <portSpacing port="source_through 1" spacing="0"/>
          <portSpacing port="sink_test set results" spacing="0"/>
          <portSpacing port="sink_performance 1" spacing="0"/>
          <portSpacing port="sink_performance 2" spacing="0"/>
        </process>
      </operator>
      <operator activated="true" class="recall_from_app" compatibility="7.3.001" expanded="true" height="103" name="Recall from App (2)" width="90" x="380" y="136">
        <parameter key="name" value="perf"/>
        <parameter key="remove_from_app" value="true"/>
      </operator>
      <connect from_op="Retrieve Golf" from_port="output" to_op="Cross Validation" to_port="example set"/>
      <connect from_op="Cross Validation" from_port="performance 1" to_op="Recall from App (2)" to_port="through 1"/>
      <connect from_op="Recall from App (2)" from_port="result" 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>

Hi,

Problem solved, now it is making result folder and storing all the values. If i need other performance metric such as precision or specificity?

Thank you