input example set does not have a label attribute

jimmyanna

Hello,

thank you for your tool. it is very helpful. I am trying to input some documents (text format) in rapid miner and output their context for my university project. I have used Process documents from Files operator and I have two directories one has text documents(.log extension)about children and other directory is about sports(again .log extensions since they are logs from chats). now when I run my process this is what I get and I am not sure what to exactly do:

Input example set does not have a label attribute
Many operators like classification and regression methods or the PerformanceEvaluator require the input example sets to have a label or class attribute. if this not the case, applying these operators is pointless. if you read the data using an ExampleSource, you can specify the label attribute by using a 'label' tag in the attribute description file.

Offending operator: Validation

Can you please help me with this? I am not sure what the problem is.

here is the XML of the process:

<?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="text:process_document_from_file" compatibility="5.3.000" expanded="true" height="76" name="Process Documents from Files" width="90" x="179" y="30">
        <list key="text_directories">
          <parameter key="child" value="C:\Users\Anahid\Desktop\chat samples\sample1"/>
          <parameter key="other" value="C:\Users\Anahid\Desktop\chat samples\sample2"/>
        </list>
        <parameter key="prune_method" value="percentual"/>
        <parameter key="prunde_below_percent" value="1.0"/>
        <parameter key="prune_above_percent" value="90.0"/>
        <process expanded="true">
          <operator activated="true" class="text:process_document_from_file" compatibility="5.3.000" expanded="true" height="76" name="Process Documents from Files (2)" width="90" x="45" y="30">
            <list key="text_directories"/>
            <process expanded="true">
              <operator activated="true" class="text:tokenize" compatibility="5.3.000" expanded="true" height="60" name="Tokenize" width="90" x="179" y="30"/>
              <operator activated="true" class="text:filter_by_length" compatibility="5.3.000" expanded="true" height="60" name="Filter Tokens (by Length)" width="90" x="179" y="120"/>
              <operator activated="true" class="text:stem_porter" compatibility="5.3.000" expanded="true" height="60" name="Stem (Porter)" width="90" x="179" y="210"/>
              <operator activated="true" class="text:filter_stopwords_english" compatibility="5.3.000" expanded="true" height="60" name="Filter Stopwords (English)" width="90" x="179" y="300"/>
              <connect from_port="document" to_op="Tokenize" to_port="document"/>
              <connect from_op="Tokenize" from_port="document" to_op="Filter Tokens (by Length)" to_port="document"/>
              <connect from_op="Filter Tokens (by Length)" from_port="document" to_op="Stem (Porter)" to_port="document"/>
              <connect from_op="Stem (Porter)" from_port="document" to_op="Filter Stopwords (English)" to_port="document"/>
              <connect from_op="Filter Stopwords (English)" from_port="document" to_port="document 1"/>
              <portSpacing port="source_document" spacing="0"/>
              <portSpacing port="sink_document 1" spacing="0"/>
              <portSpacing port="sink_document 2" spacing="0"/>
            </process>
          </operator>
          <operator activated="true" class="store" compatibility="5.3.005" expanded="true" height="60" name="Store" width="90" x="112" y="210">
            <parameter key="repository_entry" value="//Local Repository/data/res"/>
          </operator>
          <operator activated="true" class="x_validation" compatibility="5.3.005" expanded="true" height="112" name="Validation" width="90" x="246" y="75">
            <process expanded="true">
              <operator activated="true" class="classification_by_regression" compatibility="5.3.005" expanded="true" height="76" name="Classification by Regression" width="90" x="75" y="30">
                <process expanded="true">
                  <operator activated="true" class="support_vector_machine_linear" compatibility="5.3.005" expanded="true" height="76" name="SVM (Linear)" width="90" x="45" y="30"/>
                  <connect from_port="training set" to_op="SVM (Linear)" to_port="training set"/>
                  <connect from_op="SVM (Linear)" from_port="model" to_port="model"/>
                  <portSpacing port="source_training set" spacing="0"/>
                  <portSpacing port="sink_model" spacing="0"/>
                </process>
              </operator>
              <connect from_port="training" to_op="Classification by Regression" to_port="training set"/>
              <connect from_op="Classification by Regression" 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">
              <operator activated="true" class="apply_model" compatibility="5.3.005" expanded="true" height="76" name="Apply Model" width="90" x="45" y="30">
                <list key="application_parameters"/>
              </operator>
              <operator activated="true" class="performance" compatibility="5.3.005" expanded="true" height="76" name="Performance" width="90" x="45" y="165"/>
              <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="store" compatibility="5.3.005" expanded="true" height="60" name="Store (2)" width="90" x="313" y="210">
            <parameter key="repository_entry" value="//Local Repository/data/Test1"/>
          </operator>
          <connect from_op="Process Documents from Files (2)" from_port="example set" to_op="Validation" to_port="training"/>
          <connect from_op="Process Documents from Files (2)" from_port="word list" to_op="Store" to_port="input"/>
          <connect from_op="Validation" from_port="model" to_op="Store (2)" to_port="input"/>
          <portSpacing port="source_document" spacing="0"/>
          <portSpacing port="sink_document 1" spacing="0"/>
        </process>
      </operator>
      <connect from_port="input 1" to_op="Process Documents from Files" to_port="word list"/>
      <connect from_op="Process Documents from Files" from_port="example set" to_port="result 1"/>
      <connect from_op="Process Documents from Files" from_port="word list" to_port="result 2"/>
      <portSpacing port="source_input 1" spacing="0"/>
      <portSpacing port="source_input 2" 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>


Thank you very much!

Andrew2

Hello

Posting the XML of the process is usually the quickest way to get to where you want.

regards

Andrew