"Split a document in its sentences"

mahdilashkarimahdilashkari Member Posts: 3 Contributor I
edited June 2019 in Help
It has bothered me because I think it should be simple  but I have not found any solution for it.
I have a document and I want to split it in its sentences. I used tokenizer component and it only gives me a colored document. I mean I want to extract its sentences and put each sentence in a example set. my process is listed at below.
thanks a lot!

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<process version="5.3.008">
  <context>
    <input/>
    <output/>
    <macros/>
  </context>
  <operator activated="true" class="process" compatibility="5.3.008" expanded="true" name="Process">
    <parameter key="logverbosity" value="init"/>
    <parameter key="random_seed" value="2001"/>
    <parameter key="send_mail" value="never"/>
    <parameter key="notification_email" value=""/>
    <parameter key="process_duration_for_mail" value="30"/>
    <parameter key="encoding" value="SYSTEM"/>
    <process expanded="true">
      <operator activated="true" class="text:create_document" compatibility="5.3.000" expanded="true" height="60" name="Create Document" width="90" x="179" y="210">
        <parameter key="text" value="He went to USA. I went to Germany."/>
        <parameter key="add label" value="false"/>
        <parameter key="label_type" value="nominal"/>
      </operator>
      <operator activated="true" class="text:tokenize" compatibility="5.3.000" expanded="true" height="60" name="Tokenize" width="90" x="447" y="210">
        <parameter key="mode" value="linguistic sentences"/>
        <parameter key="characters" value=".:"/>
        <parameter key="language" value="English"/>
        <parameter key="max_token_length" value="3"/>
      </operator>
      <connect from_op="Create Document" from_port="output" to_op="Tokenize" to_port="document"/>
      <connect from_op="Tokenize" from_port="document" 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>

Answers

  • SkirzynskiSkirzynski Member Posts: 164 Maven
    The tokens are colored to see a preview of the tokenization. If you want to create an example set you will have to create a word list (which is in your case a sentence list) and with the "Wordlist to Data" operator you will get an example set. See process below:

    <?xml version="1.0" encoding="UTF-8" standalone="no"?>
    <process version="5.3.009">
      <context>
        <input/>
        <output/>
        <macros/>
      </context>
      <operator activated="true" class="process" compatibility="5.3.009" expanded="true" name="Process">
        <process expanded="true">
          <operator activated="true" class="text:create_document" compatibility="5.3.001" expanded="true" height="60" name="Create Document" width="90" x="45" y="30">
            <parameter key="text" value="He went to USA. I went to Germany."/>
          </operator>
          <operator activated="true" class="text:process_documents" compatibility="5.3.001" expanded="true" height="94" name="Process Documents" width="90" x="179" y="30">
            <process expanded="true">
              <operator activated="true" class="text:tokenize" compatibility="5.3.001" expanded="true" height="60" name="Tokenize" width="90" x="246" y="30">
                <parameter key="mode" value="linguistic sentences"/>
              </operator>
              <connect from_port="document" to_op="Tokenize" to_port="document"/>
              <connect from_op="Tokenize" 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="text:wordlist_to_data" compatibility="5.3.001" expanded="true" height="76" name="WordList to Data" width="90" x="313" y="30"/>
          <connect from_op="Create Document" from_port="output" to_op="Process Documents" to_port="documents 1"/>
          <connect from_op="Process Documents" from_port="word list" to_op="WordList to Data" to_port="word list"/>
          <connect from_op="WordList to Data" from_port="example set" 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>
  • mahdilashkarimahdilashkari Member Posts: 3 Contributor I
    thanks marcin
    your solution has solved my problem but i want to have the main text as an attribue for each splitted sentence. what should i do?
    thanks a lot gain.
  • MariusHelfMariusHelf RapidMiner Certified Expert, Member Posts: 1,869 Unicorn
    In this case you have to:
    - use an example set that contains all documents
    - add an ID to the data
    - split the data using Cut Document*
    - activate keep_text in Process Documents
    - Join the original document data to the split data

    *) In Cut Document, you have to manually specify a regular expression that detects linguistic sentences. As you can see, the one I invented is not yet perfect.
    <?xml version="1.0" encoding="UTF-8" standalone="no"?>
    <process version="5.3.008">
      <context>
        <input/>
        <output/>
        <macros/>
      </context>
      <operator activated="true" class="process" compatibility="5.3.008" expanded="true" name="Process">
        <process expanded="true">
          <operator activated="true" class="subprocess" compatibility="5.3.008" expanded="true" height="76" name="Generate Data" width="90" x="45" y="75">
            <process expanded="true">
              <operator activated="true" class="generate_data_user_specification" compatibility="5.3.008" expanded="true" height="60" name="Generate Data by User Specification" width="90" x="45" y="30">
                <list key="attribute_values">
                  <parameter key="doc" value="&quot;He went to USA. I went to Germany.&quot;"/>
                </list>
                <list key="set_additional_roles"/>
              </operator>
              <operator activated="true" class="generate_data_user_specification" compatibility="5.3.008" expanded="true" height="60" name="Generate Data by User Specification (2)" width="90" x="45" y="120">
                <list key="attribute_values">
                  <parameter key="doc" value="&quot;Hanny did this. Hannah did that.&quot;"/>
                </list>
                <list key="set_additional_roles"/>
              </operator>
              <operator activated="true" class="append" compatibility="5.3.008" expanded="true" height="94" name="Append" width="90" x="179" y="30"/>
              <operator activated="true" class="nominal_to_text" compatibility="5.3.008" expanded="true" height="76" name="Nominal to Text" width="90" x="313" y="30"/>
              <connect from_op="Generate Data by User Specification" from_port="output" to_op="Append" to_port="example set 1"/>
              <connect from_op="Generate Data by User Specification (2)" from_port="output" to_op="Append" to_port="example set 2"/>
              <connect from_op="Append" from_port="merged set" to_op="Nominal to Text" to_port="example set input"/>
              <connect from_op="Nominal to Text" from_port="example set output" to_port="out 1"/>
              <portSpacing port="source_in 1" spacing="0"/>
              <portSpacing port="sink_out 1" spacing="0"/>
              <portSpacing port="sink_out 2" spacing="0"/>
            </process>
          </operator>
          <operator activated="true" class="generate_id" compatibility="5.3.008" expanded="true" height="76" name="Generate ID" width="90" x="179" y="75"/>
          <operator activated="true" class="multiply" compatibility="5.3.008" expanded="true" height="94" name="Multiply" width="90" x="313" y="75"/>
          <operator activated="true" class="text:process_document_from_data" compatibility="5.3.000" expanded="true" height="76" name="Process Documents from Data" width="90" x="447" y="30">
            <parameter key="create_word_vector" value="false"/>
            <parameter key="keep_text" value="true"/>
            <list key="specify_weights"/>
            <process expanded="true">
              <operator activated="true" class="text:cut_document" compatibility="5.3.000" expanded="true" height="60" name="Cut Document" width="90" x="246" y="30">
                <parameter key="query_type" value="Regular Expression"/>
                <list key="string_machting_queries"/>
                <list key="regular_expression_queries">
                  <parameter key="text" value="([^\.]+)"/>
                </list>
                <list key="regular_region_queries"/>
                <list key="xpath_queries"/>
                <list key="namespaces"/>
                <list key="index_queries"/>
                <process expanded="true">
                  <connect from_port="segment" to_port="document 1"/>
                  <portSpacing port="source_segment" spacing="0"/>
                  <portSpacing port="sink_document 1" spacing="0"/>
                  <portSpacing port="sink_document 2" spacing="0"/>
                </process>
              </operator>
              <connect from_port="document" to_op="Cut Document" to_port="document"/>
              <connect from_op="Cut Document" from_port="documents" 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="join" compatibility="5.3.008" expanded="true" height="76" name="Join" width="90" x="581" y="120">
            <list key="key_attributes"/>
          </operator>
          <connect from_op="Generate Data" from_port="out 1" to_op="Generate ID" to_port="example set input"/>
          <connect from_op="Generate ID" from_port="example set output" to_op="Multiply" to_port="input"/>
          <connect from_op="Multiply" from_port="output 1" to_op="Process Documents from Data" to_port="example set"/>
          <connect from_op="Multiply" from_port="output 2" to_op="Join" to_port="right"/>
          <connect from_op="Process Documents from Data" from_port="example set" to_op="Join" to_port="left"/>
          <connect from_op="Join" from_port="join" 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>
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