Obtaining Lists of Themes, Gists, and Theme Summaries

The following table describes lists of themes, gists, and theme summaries.

Table 1 Lists of Themes, Gists, and Theme Summaries

Output Type	Description
List of Themes	A list of the main concepts of a document. Each theme is a single word, a single phrase, or a hierarchical list of parent themes.
Gist	Text in a document that best represents what the document is about as a whole.
Theme Summary	Text in a document that best represents a given theme in the document.

To obtain lists of themes, gists, and theme summaries, use procedures in the CTX_DOC package to:

• Identify documents by ROWID in addition to primary key

• Store results in-memory for improved performance