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The Concepts tab (SPSS Modeler)

The Concepts tab

In the Text Analytics Workbench, you can use the Concepts tab to create and explore concepts as well as explore and tweak the extraction results.

Concepts are the most basic level of extraction results available to use as building blocks, called descriptors, for your categories. Categories are a group of closely related ideas and patterns to which documents and records are assigned through a scoring process.

Text mining is an iterative process in which extraction results are reviewed according to the context of the text data, fine-tuned to produce new results, and then reevaluated. Extraction results can be refined by modifying the linguistic resources. To simplify the process of fine-tuning your linguistic resources, you can perform common dictionary tasks directly from the Concepts tab. You can fine-tune other linguistic resources directly from the Resource editor tab.

Figure 1. Concepts tab
Concepts tab

Concepts pane

This area presents the extraction results. When you run an extraction, the extraction engine reads through the text data, identifies the relevant concepts, and assigns a type to each. Concepts are words or phrases extracted from your text data. Types are semantic groupings of concepts stored in the form of type dictionaries. When the extraction is complete, concepts and types appear with color coding in this pane.

When you select a row (a concept) in the pane, you can then display information about corresponding documents/records or descriptors.

You can also click the Filter icon to filter the concepts that are displayed. With no concepts selected, you can click the Settings icon to change the extraction settings. For more information, see Setting options.

Note: If you select more than 100 concepts, the entire list of documents will be displayed.

Preview pane

The Preview pane presents a table containing the documents or records corresponding to the concept you select. Depending on what you select, only the corresponding text appears in the Preview pane.

When you select a concept, the corresponding documents or records show the concepts highlighted in color to help you easily identify them in the text. You can also hover over color-coded items to see a tooltip that shows the name of the concept under which it was extracted and the type to which it was assigned.

Searching the Concepts tab

To locate information quickly in a particular section:

  1. Click the Find icon on the Concepts tab to display the search field.
  2. Type the word string you want to search for. You can use the up and down arrow buttons to control the direction of your search. If a match is found, the text is highlighted.
  3. To look for the next match, click the arrow button again.
Generative AI search and answer
These answers are generated by a large language model in watsonx.ai based on content from the product documentation. Learn more