What data for this category looks like
This category covers daily office and compliance documents from entities including state-owned enterprise (SOE) procurement centers, tendering offices, business demand departments, audit and discipline inspection departments, and tendering agencies. Documents include procurement plans, demand specifications, tender documents, bid evaluation records, contracts, acceptance slips, and supplier complaint materials. Data is sourced from enterprise procurement platforms, public resource trading platforms, supplier databases, contract management systems, and audit problem databases. Data is updated daily. Documents contain structured fields such as procurement method, budget basis, scoring rules, supplier qualification requirements, alongside unstructured text content.
What constraints do these data characteristics impose on vector model and indexing workflows
The data characteristics of this category create multiple constraints for vector model and indexing workflows. Daily updated multi-source data requires support for incremental indexing and multi-source data synchronization. Documents mix structured fields and unstructured text, so both semantic retrieval and precise field matching are needed. Individual document sizes vary widely, from short procurement plans to lengthy bid evaluation records. This requires adaptable text chunking rules for different text lengths. Compliance review needs association with historical cases from the audit problem database. This requires index association logic across business databases.
How to set up configurations
Reference only; verify against the target FastGPT release and deployment documentation.
| Configuration Item | Recommended Setting | Rationale |
|---|---|---|
| Chunk Length | 800–1200 characters | Ensures semantic integrity for long documents such as tender documents and bid evaluation records, avoids semantic breaks within chunks |
| Overlap Length | 100–200 characters | Retains contextual association across chunks, prevents key compliance clauses from being truncated during chunking |
| Similarity Threshold | 0.75–0.85 | Filters low-correlation supplier information and historical cases, improves the accuracy of compliance reviews |
| Maximum Single Recall | Top 10 entries | Controls the volume of retrieval results, meets the rapid verification needs of tendering and procurement compliance reviews |
maxToken | 4096 token | Adapts to the input length limit of embedding models, ensures that long document chunks can generate vectors normally |
defaultToken | Calibrated via actual testing | Handles empty fields or abnormal text with no clear semantics, prevents index generation failures |
Three common configuration errors
- Symptom: Manually inserted tendering and procurement compliance document indexes disappear from the knowledge base after several hours, and the interface shows empty indexes. Cause: Persistence configuration for incremental indexing is not enabled, and temporary default indexes are overwritten during daily data synchronization.
- Symptom: File upload status remains "Indexing" for a long time with no progress updates. Cause: Matching embedding model parameters are not used, or the
maxTokensetting exceeds the model's input limit, causing vector generation to time out. - Symptom: Compliance retrieval results do not associate with historical compliance cases from the audit problem database. Cause: Cross-data-source index association rules are not configured, and retrieval is only performed on a single business database.
How to verify correct configuration
- Upload a single tender document, wait for indexing to complete, manually retrieve compliance keywords, verify that the chunk length of returned results matches the set values.
- View the knowledge base index management page, confirm that all inserted compliance documents show normal index status, with no timeout or failure markers.
- After configuring cross-data-source association rules, retrieve historical audit problems, confirm that results include both procurement documents and audit case content.
- Trigger a daily incremental synchronization task, check whether newly added supplier database data has successfully generated indexes and been added to the retrieval scope.
The 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.