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UI updates (#6290)

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### What problem does this PR solve?



### Type of change


- [x] Documentation Update
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writinwaters
2025-03-20 10:26:16 +08:00
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docs/guides/agent/agent_component_reference/retrieval.mdx
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@ -53,23 +53,31 @@ Using a rerank model will *significantly* increase the system's response time.
### Tavily API key
If an API key is correctly set here, Tavily-based web searches will be used to supplement knowledge base retrieval.
*Optional*
Enter your Tavily API key here to enable Tavily web search during retrieval. See [here](https://app.tavily.com/home) for instructions on getting a Tavily API key.
### Use knowledge graph
It will retrieve descriptions of relevant entities,relations and community reports, which will enhance inference of multi-hop and complex question.
Whether to use knowledge graph(s) in the specified knowledge base(s) during retrieval for multi-hop question answering. When enabled, this would involve iterative searches across entity, relationship, and community report chunks, greatly increasing retrieval time.
### Knowledge bases
*Optional*
Select the knowledge base(s) to retrieve data from.
:::danger IMPORTANT
If you select multiple knowledge bases, you must ensure that the knowledge bases (datasets) you select use the same embedding model; otherwise, an error message would occur.
:::
- If no knowledge base is selected, meaning conversations with the agent will not be based on any knowledge base, ensure that the **Empty response** field is left blank to avoid an error.
- If you select multiple knowledge bases, you must ensure that the knowledge bases (datasets) you select use the same embedding model; otherwise, an error message would occur.
### Empty response
Set this as a response if no results are retrieved from the knowledge bases for your query, or leave this field blank to allow the LLM to improvise when nothing is found.
- Set this as a response if no results are retrieved from the knowledge base(s) for your query, or
- Leave this field blank to allow the chat model to improvise when nothing is found.
:::caution WARNING
If you do not specify a knowledge base, you must leave this field blank; otherwise, an error would occur.
:::
## Examples