Previewing a Knowledge Source is essentially testing how semantic search works for a selected Knowledge Source.
To preview, enter your search term in the Preview section on the right side of the screen and click the Search button.
Semantic search over Knowledge Source content will return the 20 first-best results, starting with the highest-scored chunks of content.
A score (0 to 1) that represents the relevance of each text chunk is displayed next to chunk titles.
To view chunk details, e.g. its content and metadata, click on its title.
Click on the View document button to navigate to the original document.