What the data for this category looks like
Data primarily comes from daily monitoring data of the national building materials industry association, public notices of infrastructure project filings from local housing and urban-rural development departments, and corporate financing transaction records from regional supply chain financial platforms. Full synchronization of the previous day’s data runs every early morning. Each daily report document includes three core content types: regional cement supply and demand data for the day, associated corporate financing credit lines, and maturity payment details. Fields include regional code, cement grade, shipment volume, daily financing amount, financing maturity date, credit subject qualification level, and more. Some documents include project filing numbers and transaction voucher numbers. The unit for shipment volume is tons, and the unit for financing amount is ten thousand yuan.
What constraints these characteristics impose on citations and provenance
Multi-source, heterogeneous data sources require the provenance workflow to clearly mark the knowledge base source for each cited segment. This prevents cross-platform and cross-regional data confusion. The daily high-frequency update requirement means the provenance link must bind the data synchronization timestamp. This stops expired historical data from being cited. The document structure with segmented fields such as region and grade requires precise field matching rules for retrieval. This avoids recalling irrelevant cross-regional or non-matching grade segments. Fields with attached transaction voucher numbers require the provenance workflow to retain original document number mappings. This enables direct linking to the corresponding original public data source.
Configuration settings
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
similarity threshold | 0.75–0.85 | Cement financing daily reports have high relevance requirements for retrieved segments; this interval filters low-relevant cross-regional and non-matching grade data |
rerank return count | Top 6–10 entries | Sufficient candidate segments must be retained under multi-source data, to avoid valid information being filtered by reranking rules |
knowledge base sync interval | 24 hours | Matches the daily update rhythm of cement financing daily reports, ensuring provenance data is the latest version |
cited segment maximum length | 1000 characters | Average length of core content segments for a single daily report, to avoid introducing irrelevant redundant information |
PARSE_FILE_TIMEOUT_SECONDS | 60 seconds | Adapts to the average response duration of multi-source retrieval, preventing parsing timeouts from interrupting the provenance workflow |
provenance field retention rule | Retain regional code, financing voucher number | Bind the unique identifier of the original data source, ensuring provenance can directly link to corresponding public records |
The parameter values provided on this page are general recommendations for establishing configuration baselines. Actual values are affected by material form, data volume, and business rules. Specific issues require case-by-case analysis. It is recommended to test on your own samples before finalizing settings.
Three common configuration errors
- Scenario: Citation segments are empty or the number of recalled entries is far lower than expected after enabling reranking. Cause: The rerank return count is set too low, and the similarity threshold is set too high, filtering valid matched segments.
- Scenario: Cited financing daily report data does not match the current day’s actual data. Cause: The knowledge base sync interval is set too long, failing to match the daily update rhythm, resulting in expired provenance data.
- Scenario: Cross-regional or non-matching grade cement financing data appears in retrieval results. Cause: Precise field matching rules are not configured. Only global keyword retrieval is used, and the region and grade dimensions are not bound.
How to verify correct configuration
- Manually upload a test cement financing daily report document, initiate a retrieval, and confirm that recalled segments match the preset region and grade dimensions.
- View the knowledge base sync logs to confirm full synchronization completes every early morning, with no timeout error records.
- After enabling the reranking function, compare retrieval results before and after enabling. Confirm the reranking rules do not filter valid matched segments.
- Randomly select a cited segment, confirm the provenance fields retain the regional code and financing voucher number, and can directly link to the original data source.
Question material comes from public community discussions. Configuration values are common starting points and should be measured against your own samples. Verified on 2026-09-14.