Exploring Text Link Analysis
In the Text Link Analysis (TLA) view, you can explore text link analysis pattern results. Text link analysis is a pattern-matching technology that enables you to define pattern rules and compare these to actual extracted concepts and relationships found in your text.
For example, extracting ideas about an organization may not be interesting enough to you. Using TLA, you could also learn about the links between this organization and other organizations or the people within an organization. You can also use TLA to extract opinions on products or, for some languages, the relationships between genes.
Once you've extracted some TLA pattern results, you can review them in the Type and Concept Patterns panes of the Text Link Analysis view. See the topic Type and Concept Patterns for more information. You can further explore them in the Data or Visualization panes in this view. Possibly most importantly, you can add them to categories.
If you have not already chosen to do so, you can click Extract and choose Enable Text Link Analysis pattern extraction in the Extract Settings dialog box. See the topic Extracting TLA Pattern Results for more information.
There must be some TLA pattern rules defined in the resource template or libraries you are using in order to extract TLA pattern results. You can use the TLA patterns in certain resource templates shipped with IBM® SPSS® Modeler Text Analytics. The kind of relationships and patterns you can extract depend entirely on the TLA rules defined in your resources. You can define your own TLA rules. Patterns are made up of macros, word lists, and word gaps to form a Boolean query, or rule, that is compared to your input text. See the topic About Text Link Rules for more information.
Whenever a TLA pattern rule matches text, this text can be extracted as a pattern and restructured as output data. The results are then visible in the Text Link Analysis view panes. Each pane can be hidden or shown by selecting its name from the View menu:
- Type and Concept Patterns Panes. You can build and explore your patterns in these two panes. See the topic Type and Concept Patterns for more information.
- Visualization pane. You can visually explore how the concepts and types in your patterns interact in this pane. See the topic Text Link Analysis Graphs for more information.
- Data pane. You can explore and review text contained within documents and records that correspond to selections in another pane. See the topic Data Pane for more information.
