Create Topics

After filtering text, you can use the Text Topic node to create topics. Perform the following steps to use Text Topic nodes in the analysis:
  1. Select the Text Mining tab on the node toolbar and drag a Text Topic node into the diagram workspace.
  2. Connect the Text Filter node to the Text Topic node.
  3. Select the Text Mining tab on the node toolbar and drag a Text Topic node into the diagram workspace.
  4. Right-click the Text Topic node, and select Rename.
  5. Enter Text Topic — CST in the Node Name field, and then click OK.
  6. Select the Text Topic — CST node.
  7. Enter 50 as the value for the Number of Multi-term Topics property.
  8. Connect the Text Filter — CST node to the Text Topic — CST node.
    Process flow diagram
  9. Right-click the Text Topic node in the diagram workspace, and select Run. Click Yes in the Confirmation dialog box.
  10. Click Results in the Run Status dialog box when the node has finished running.
  11. Review the topics in the Topics table to see which terms make up each topic.
    Topics table
  12. Close the Results window.
  13. Right-click the Text Topic — CST node in the diagram workspace, and select Run. Click Yes in the Confirmation dialog box.
  14. Click Results in the Run Status dialog box when the node has finished running.
  15. Review the topics in the Topics table to see which terms make up each topic.
    Notice that the topics that were generated by running the Text Topic — CST are different from those that were generated by running the Text Topic node.
    Topics table
    The differences follow from previously performed text cleaning activities, and the number of multi-term topics.
  16. Close the Results window.