What this category’s data looks like
The data sources for this category are the real estate registration information system, cadastral survey database, housing transaction online signing system, tax system, and electronic certificate repository. The update frequency is daily. Daily documents include registration application forms, ownership certificates, survey results, tax payment vouchers, real estate property rights certificates, and registration books. Data fields center on core information such as real estate right ownership, location, right type, and restriction status, with no custom statistical units added.
Constraints Imposed on Knowledge Base Retrieval and Recall by These Data Characteristics
This category’s data covers heterogeneous documents from multiple systems, with significant format differences. This requires the knowledge base retrieval to adapt to chunking and indexing rules for different document structures. The daily updated data volume is stable, so the recall link must support incremental synchronization to ensure data timeliness. Core data focuses on key information such as real estate right ownership and restriction status. Retrieval must prioritize matching high-weight fields to avoid irrelevant results interfering with the accuracy of party building learning Q&A. Additionally, incorrect recall may trigger administrative risks, so the proportion of low-similarity recall results must be strictly controlled.
How to Set Configurations
Reference only; verify against the target FastGPT release and deployment documentation.
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
similarity | 0.75–0.85 | Matches high-weight fields of real estate ownership documents, filters low-relevance content, and ensures retrieval accuracy for party building learning Q&A |
limit | Top 10 entries | Covers candidate sets from multiple source documents, while controlling context length to comply with input limits for party building Q&A |
searchMode | Hybrid retrieval (vector + keyword) | Balances semantic matching and precise keyword hits, adapting to retrieval needs for fixed fields such as location in registration documents |
usingReRank | Enabled | For long texts related to real estate ownership, re-ranking improves precise matching accuracy, adapting to accurate retrieval of policies and registration rules in party building learning |
datasetSearchUsingExtensionQuery | Disabled | Party building learning Q&A must strictly match the user’s original query, avoiding query rewriting that deviates from registration business terminology |
collectionIds | Bound to real estate registration-specific knowledge base collections | Isolates multi-category data, ensuring retrieval only calls registration-related documents, and safeguarding data security and accuracy |
Three Common Mistakes
- Symptom: Re-ranking results return false, and the interface shows re-ranking is not effective. Cause: The corresponding re-ranking model is not bound in the global configuration, or the
usingReRankconfiguration item is not enabled. - Symptom: No optional values appear for knowledge base variable references, and the target dataset cannot be selected in the workflow. Cause: The real estate registration-specific knowledge base collection is not configured as a referenceable public collection, or dataset permissions are not enabled in the workflow node.
- Symptom: The number of knowledge base files uploaded in a single operation exceeds the limit, and upload fails. Cause: The file upload upper limit has not been adjusted according to the locally deployed server storage configuration, or large-volume documents have not been split into chunks that comply with chunking rules.
How to Confirm Proper Configuration
- Submit a test query such as "Real estate registration ownership verification process", and check if the retrieval results include documents related to real estate property rights certificates and registration application forms.
- View the retrieval log to confirm that the
usingReRankconfiguration is active, and re-ranking score sorting meets expectations. - Check the variable reference options in the workflow node, and confirm that the real estate registration-specific knowledge base collection appears in the optional list.
- Simulate a daily incremental update task, and confirm that the knowledge base can automatically synchronize the latest registration data without synchronization failure error reports.
The configuration values provided here are common starting points, and should be evaluated against the reader’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.