What this category of data looks like
The data for this category is primarily sourced from the national government service platform’s "One Thing" special zone, local integrated government service platforms, electronic certificate repositories, and various department approval systems. Updates occur daily. Commonly included documents are joint handling item lists, one-time notification sheets, joint handling application forms, material circulation slips, parallel approval opinions, and completion receipts. Data typically contains fields such as pre- and post-relationships for cross-departmental items, application material requirements, and processing node statuses. No unified fixed unit exists; specific field units adjust based on document type.
What constraints do these characteristics impose on the knowledge base retrieval and recall link
Because data sources cover multiple department systems and are updated daily, knowledge base retrieval must support incremental synchronization mechanisms to avoid data lag impacting real-time queries of joint handling items. Document types include cross-departmental item relationship descriptions, material lists, and more. Structural differences between different documents require retrieval matching to balance structured fields and unstructured text. At the same time, the pre- and post-logic of joint handling items relies on multi-source data association. The recall link must prioritize associating related documents under the same item; matching only single pieces of content cannot cover the complete logic of joint handling business. Data also has no unified unit. Retrieval filtering must adapt to the field formats of different documents to avoid invalid results caused by matching deviations.
How to set configurations
| Configuration Item | Recommended Setting | Rationale |
|---|---|---|
similarity | 0.75–0.85 | Aligns with the semantic similarity matching requirements of joint handling item documents, filtering low-relevance cross-departmental irrelevant content |
limit | Top 10 entries | Controls the number of single recall results, preventing interruptions caused by workflow context overload |
searchMode | hybrid | Combines keyword and semantic retrieval, covering structured keywords for item lists and semantic descriptions of processing procedures |
usingReRank | Enabled | Performs secondary sorting on recall results by relevance, prioritizing returning core content for cross-departmental joint handling |
datasetSearchUsingExtensionQuery | Enabled | Expands user queries by adding general related keywords for joint handling items, improving cross-departmental content recall rate |
Three common mistakes
- The status of joint handling documents remains "indexing" for a long time after being imported into the knowledge base: The cause is that the daily incremental synchronization trigger rule is not configured, resulting in large batches of joint handling item documents failing to complete index construction.
- Semantic similarity values appear abnormal after switching vector models: The cause is that the matching interval of
similarityis not adjusted, and the threshold for single-item business is retained, which cannot adapt to the semantic differences of multi-source data for joint handling items. - The workflow interrupts during the knowledge base search stage: The cause is that a reasonable upper limit for
limitis not set, and too many recall results cause context overflow, triggering workflow termination.
How to confirm the configuration is complete
- Call the FastGPT v4.17.0 knowledge base status query API to confirm that the parsing status of joint handling documents is ready, with no failed records.
- Initiate a simulated query, enter keywords for joint handling items, and check that the number of returned results matches the configured
limitvalue. - Review the sorting of retrieval results to confirm that the pre- and post-description of the most relevant joint handling items appears at the top.
- Test the incremental update trigger to confirm that newly uploaded joint handling item lists complete index synchronization within 24 hours.
The values provided here are common starting points and should be evaluated against the user's own samples.
Question material comes from public community discussions. Configuration values are common starting points and should be measured against your own samples. Verified on 2026-09-28.