Topic Modelling with LDA

Ilyas

Hi Guys,
How do I set up a process with LDA to do topic modeling, please? I placed the LDA operator to process window, but don't know how to import word files into it.

Marco_Barradas

Ilyas,

You basis setup would be a Loop Files (To grab all your documents) with a Read Document inside of it. 

The (?i).*docx tells the operator to only use the files that have a docx extension  

<?xml version="1.0" encoding="UTF-8"?><process version="9.9.002">
  <context>
    <input/>
    <output/>
    <macros/>
  </context>
  <operator activated="true" class="process" compatibility="9.9.002" expanded="true" name="Process">
    <parameter key="logverbosity" value="init"/>
    <parameter key="random_seed" value="-1"/>
    <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="concurrency:loop_files" compatibility="9.9.002" expanded="true" height="82" name="Loop Folder With Files" width="90" x="179" y="85">
        <parameter key="filter_type" value="regex"/>
        <parameter key="filter_by_regex" value="(?i).*docx"/>
        <parameter key="recursive" value="false"/>
        <parameter key="enable_macros" value="false"/>
        <parameter key="macro_for_file_name" value="file_name"/>
        <parameter key="macro_for_file_type" value="file_type"/>
        <parameter key="macro_for_folder_name" value="folder_name"/>
        <parameter key="reuse_results" value="false"/>
        <parameter key="enable_parallel_execution" value="true"/>
        <process expanded="true">
          <operator activated="true" class="text:read_document" compatibility="9.3.001" expanded="true" height="68" name="Read Document" width="90" x="246" y="34">
            <parameter key="extract_text_only" value="true"/>
            <parameter key="use_file_extension_as_type" value="true"/>
            <parameter key="content_type" value="txt"/>
            <parameter key="encoding" value="SYSTEM"/>
          </operator>
          <connect from_port="file object" to_op="Read Document" to_port="file"/>
          <connect from_op="Read Document" from_port="output" to_port="output 1"/>
          <portSpacing port="source_file object" spacing="0"/>
          <portSpacing port="source_input 1" spacing="0"/>
          <portSpacing port="sink_output 1" spacing="0"/>
          <portSpacing port="sink_output 2" spacing="0"/>
        </process>
      </operator>
      <operator activated="true" class="operator_toolbox:lda" compatibility="2.11.000" expanded="true" height="124" name="Extract Topics from Documents (LDA)" width="90" x="380" y="85">
        <parameter key="number_of_topics" value="10"/>
        <parameter key="show_optimization_settings" value="false"/>
        <parameter key="use_alpha_heuristics" value="true"/>
        <parameter key="alpha_sum" value="0.1"/>
        <parameter key="use_beta_heuristics" value="true"/>
        <parameter key="beta" value="0.01"/>
        <parameter key="optimize_hyperparameters" value="true"/>
        <parameter key="optimize_interval_for_hyperparameters" value="10"/>
        <parameter key="iterations" value="1000"/>
        <parameter key="top_words_per_topic" value="5"/>
        <parameter key="stopword language" value="english"/>
        <parameter key="reproducible" value="false"/>
        <parameter key="enable_logging" value="false"/>
        <parameter key="use_local_random_seed" value="false"/>
        <parameter key="local_random_seed" value="1992"/>
        <parameter key="include_meta_data" value="true"/>
      </operator>
      <connect from_op="Loop Folder With Files" from_port="output 1" to_op="Extract Topics from Documents (LDA)" to_port="col"/>
      <portSpacing port="source_input 1" spacing="0"/>
      <portSpacing port="sink_result 1" spacing="0"/>
    </process>
  </operator>
</process>