What the data for this category looks like
The data for infrastructure construction financing daily reports comes primarily from local housing and urban-rural development department project filing systems, policy bank credit disclosure channels, and financing announcements publicly released by infrastructure project sponsors. Data is updated daily, aggregating newly added infrastructure project financing approval, credit disbursement, and bond issuance information each day. Most documents use structured formats, including fields such as project ID, project name, affiliated region, total investment, financing amount, financing method, financing subject, approval date, and disbursement date. Units for total investment and financing amount are ten thousand yuan. Date fields follow the YYYY-MM-DD standard format.
What constraints these characteristics impose on the knowledge base retrieval and recall workflow
High proportion of structured fields requires retrieval to support both exact field matching and semantic recall, to avoid missing precisely matched project information. The daily update feature requires the knowledge base to support incremental synchronization, to avoid resource consumption from full reindexing. Fields have clear units, so retrieval must avoid mismatches caused by unit confusion. Strong timeliness of information requires adjusting recall weights based on update time, to prioritize recently published financing data. Single entries contain multi-dimensional content, so recall count must be controlled to fit context window limits.
How to set configurations
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
recall count | 8–12 entries | Single infrastructure financing daily report includes multi-dimensional professional fields. Excessive recall will exceed context window quotas |
similarity threshold | 0.72–0.85 | Infrastructure industry terminology is highly specialized. A threshold that is too low will introduce irrelevant industry information, while a threshold that is too high will miss relevant project content |
PARSE_FILE_TIMEOUT_SECONDS | 300 seconds | Structured financing daily report files may contain multiple sheet data, resulting in long parsing times. Sufficient parsing time must be reserved |
incremental update trigger cycle | 2:00 AM daily | Matches the daily release rhythm of financing daily reports, avoids repeated import of already processed data for the current day |
maxContext | 8000–12000 characters | Infrastructure financing information requires splicing multi-field content. An adequate context window can fully carry valid recalled information |
re-ranked return count | Top 5 entries | Prioritizes displaying the most recently updated financing projects, aligns with business requirements for timeliness |
The parameter values provided on this page are common recommended starting points for configuration. Actual values are affected by material format, data volume, and business rules. Specific issues require specific analysis. It is recommended to test against your own samples before finalizing settings.
Three common mistakes
- Phenomenon: After configuring the tool workflow, the AI cannot call both the knowledge base retrieval and external financing data interfaces. Cause: The knowledge base retrieval node was not bound first in the tool workflow, or the correct trigger order for tool calls was not set.
- Phenomenon: When a user's query does not match any knowledge base content, the returned result still includes knowledge base file reference identifiers. Cause: The "return knowledge base fallback content when no matches are found" switch was not turned off, or the similarity threshold was set too high, leading to false matches.
- Phenomenon: When attempting to import infrastructure financing daily report data from a third-party storage medium, parsing fails or fields are missing. Cause: Data was not converted to the CSV/Excel format supported by the platform, or the access authorization path for external storage was not configured.
How to confirm configuration is complete
- Upload a single structured financing daily report file, check if all preset fields are fully extracted in the parsing results, to confirm the parsing configuration is active.
- Submit a test query to retrieve financing information for a specified project, verify that the update time of the recalled results matches the data source release time, to confirm the incremental update configuration is active.
- Simulate a query for unreferenced infrastructure financing-related questions, check if the returned result does not include knowledge base file references, to confirm the fallback logic configuration is correct.
- Trigger a manual incremental update task, check if the knowledge base update log shows that the day's data has been synchronized, to confirm the cycle configuration is active.
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.