What the data for this category looks like
Data for building construction research reports comes primarily from public construction standards issued by housing and urban-rural development authorities, industry analysis reports released by industry associations, special construction research reports produced by design institutes, and bidding announcement documents from public resource trading platforms.
Update frequency varies by content type: policy reports are updated quarterly, bidding documents are updated in real time, and industry analysis reports are updated monthly.
Document structures include modules such as project overview, cost details, material parameters, construction techniques, and compliance clauses. Field units mostly use standard units common in the building construction industry, such as yuan/square meter, cubic meter, and construction days.
What constraints these characteristics impose on HTTP interfaces and external systems
Building construction research reports have a large number of structured fields, dense technical terminology, and strict unit requirements. HTTP interfaces must support precise filtering using specific parameters such as material code and project type to avoid returning irrelevant content.
Real-time updated bidding research reports require interfaces to support incremental pull requests, reducing data processing pressure on external systems.
Single research reports contain a large number of charts and attachments. This requires interfaces to support chunked upload and pagination responses, preventing excessive data volume in a single request.
The presence of industry-specific fields requires external systems to pass request parameters matching the building construction scenario when calling the interface. General research report retrieval interface configurations cannot be reused directly.
How to set configurations
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
recall count | Top 10 entries | Building construction research reports have long individual content; excessive recall will exceed the context window and reduce answer accuracy |
similarity threshold | 0.75–0.85 | There are many technical terms in building construction research reports. A threshold that is too low will introduce irrelevant content, while a threshold that is too high will miss relevant precise results |
PARSE_FILE_TIMEOUT_SECONDS | 300 seconds | Single building construction research reports contain a large number of CAD drawings, cost lists and other attachments, resulting in long parsing times |
UPLOAD_FILE_MAX_SIZE | 200 MB | Building construction research reports often include large engineering drawings and detailed attachments, so individual file sizes are generally large |
API_RATE_LIMIT | 100 requests per minute | Research reports in the building construction industry are updated at a high frequency, and external system call demands are concentrated. This setting limits the number of requests per minute |
RESULT_PAGINATION_SIZE | 5 entries per page | Returning too many entries per page will increase content parsing pressure on external systems. This setting adapts to pagination retrieval scenarios |
The parameter values provided on this page are common starting points for configuration. Actual values are affected by material form, data volume and business rules. Specific issues require specific analysis, and it is recommended to test on your own samples before finalizing settings.
Three common configuration errors
- Passing general keywords when calling the interface without including the building construction-specific parameter
material_codewill return a400 Bad Requesterror. This occurs because the structured retrieval rules for building construction research reports are not matched. - Triggering the
UPLOAD_FILE_LIMIT_EXCEEDEDerror when uploading building construction research report attachments. This happens because the configuredUPLOAD_FILE_MAX_SIZEis set too small and does not adapt to the large engineering drawings attached to building construction research reports. - After deploying and publishing the application, the number of results returned by external system calls does not match expectations. This is because the
recall countconfiguration is not adjusted, and the default recall count does not match the content length of building construction research reports.
How to confirm the configuration is correct
- Call the interface with parameters exclusive to building construction projects, and check whether the returned results include fields related to building construction such as cost details and construction techniques.
- Upload a building construction research report attachment with a size under 200 MB, and confirm that no upload failure prompt appears.
- Check the field units returned by the interface, and confirm that they match the standard units of the building construction industry such as yuan/square meter and construction days.
- Simulate a request volume of 100 requests per minute, and confirm that the interface does not trigger current limiting errors.
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.