Generate a Summary with Select AI

Select AI enables you to generate a summary of your text, especially large texts, generally supporting up to 1 GB using AI providers. You can extract key insights from texts or large files as per your specific needs. This feature uses the LLM specified in your AI profile to generate a summary for a given text.

Select AI offers summarization of your content in the following ways:

Use summarize as the Select AI action. See Use AI Keyword to Enter Prompts andExample: Select AI Actions to learn more.
Use the DBMS_CLOUD_AI.SUMMARIZE function to specify customizations such as summary length, format, extraction level for a summary and so on with summarization parameters. See Example: Select AI Summarize to learn more.
Use the DBMS_CLOUD_AI.GENERATE function with the summarize action. See GENERATE Function to learn more.

Note:

Select AI summarize is applicable for Autonomous AI Database 19c and Autonomous AI Database 26ai.
Select AI summarize supports content up to 1 GB.
Supported file formats: Files must be encoded in UTF-8.
For Autonomous AI Database 26ai:

Select AI supports a broader range of file formats. For details, see Oracle Text Supported Document Formats.
For Autonomous Database 19c:

Select AI supports only text files. The content must be in plain text and Select AI does not support `json`, `html`, `docx`, or `pdf`.

Summarization Techniques

You can summarize a large document by entering the full text as a prompt for the LLM. However, since LLMs have token limits, Select AI applies different techniques to summarize large documents.

Select AI applies the following summarization techniques:

Iterative refinement. See Iterative Refinement.
MapReduce. See MapReduce.

Based a given LLM’s maximum token size, Select AI can break large content into smaller, easier-to-handle chunks that fit within the LLM’s limits. Select AI can then use either the iterative refinement or map reduce technique to generate the summary. Select AI uses MapReduce as the default setting. See SUMMARIZE Function and SUMMARIZE Parameters for more details.