Background document, with more global and comprehensive knowledge, has been often used for generating informative responses and ensuring a conversation to not deviate from its topic.

San Jose State University

Ground text is the textual data that is not available in any structured form or in any database, these are available in  online resources like encyclopedias, social media , shopping websites.
knowledge grounded text is often taken as an important external knowledge source to help with a variety of NLG applications.

 - Guiding Generation with Retrieved Information
- Modeling Background Knowledge into Response Generation


 NLG enhanced by Grounded Text

A Survey of Knowledge-Enhanced Text Generation

- Dialogue system
- Summarization
- Question answering (QA)


NLG applications enhanced by knowledge grounded text

Relevant textual information from online resources is incorporated into the generation process, since the grounded text is unstructured and noisy methods are designed to clear selection of knowledge data.

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