What the Data for This Category Looks Like
Construction engineering research report data is primarily sourced from public construction standards issued by housing and urban-rural development authorities, bidding announcements on the national construction market supervision public service platform, annual white papers from industry associations, and specialized technical reports from first-class design institutes. There are three update schedules: compliance-related standards are updated every 1 to 3 years, bidding announcements are released in real time alongside project progress, and technical reports are updated irregularly alongside project delivery. Document structure includes basic project information, cost details (with units such as yuan/square meter, cubic meter, etc.), construction process parameters, and compliance verification results. Fields include project ID, floor area, project cost, construction cycle, and more.
Constraints Imposed by These Characteristics on Multi-turn Dialogue and Prompting
Real-time updated bidding announcements require multi-turn dialogue to support real-time recall of the latest data, to avoid returning expired project information. Clear unit fields require prompts to constrain the model to match corresponding units, to prevent confusion over cost units. The lengthy document structure and multiple fields require multi-turn dialogue to retain context to follow up on user questions about specific fields, while prompts need to guide users to clearly specify the exact field name they are referring to. Fixed update cycles for compliance standards require that when compliance verification is involved in multi-turn dialogue, the model is prompted to check the currently effective standard version.
Configuration Settings
| Configuration Item | Recommended Range | Rationale |
|---|---|---|
maxContext | 8000-12000 characters | Single construction engineering research report documents often exceed 5000 characters. Multi-turn dialogue needs to retain multi-round interactions and recalled content to avoid context truncation that loses critical cost and schedule information |
recallTopK | Top 8-12 entries | Construction engineering research reports contain multi-dimensional data. Sufficient recall is needed to cover content related to cost, compliance, and processes, to avoid information gaps caused by insufficient recall |
similarityThreshold | 0.72-0.80 | Construction engineering data has high requirements for field accuracy. Low-correlation general construction content needs to be filtered out, retaining specialized research reports with high matching degrees |
PARSE_FILE_TIMEOUT_SECONDS | 120 seconds | Single construction engineering research report often contains a large number of drawing parameters and detailed tables. Parsing takes a long time, to avoid early timeout that prevents complete document loading |
Chunk size | 1500-2000 characters | The cost details and process paragraphs of construction engineering research reports have clear structures. Segment length adapts to field integrity, avoiding splitting that breaks the association between units and data |
UPLOAD_FILE_MAX_SIZE | 1000 MB | Construction engineering research reports often include high-definition drawing attachments. Need to adapt to the upload requirements of large documents, to avoid triggering upload restrictions |
The parameter values provided on this page are common recommended 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 Misconfigurations
- Phenomenon: After calling the API to upload a construction engineering research report, the corresponding content cannot be recalled during dialogue, and the error prompt
413 Request Entity Too Largeis returned. Cause: TheUPLOAD_FILE_MAX_SIZEparameter is not configured. Single construction engineering research report documents often exceed the default limit, causing upload failure. - Phenomenon: The form input fields configured in the workflow are not displayed during multi-turn dialogue interaction, and users cannot submit custom project IDs. Cause: The dialogue context pass-through form field switch for the workflow is not enabled, causing the form configuration to not be synchronized to the dialogue interface.
- Phenomenon: After setting
similarityThresholdto 0.9, the number of returned research report results in the dialogue is 0. Cause: The similarity threshold is set too high, filtering out all specialized construction engineering research reports that meet the matching degree but are not fully precise.
How to Verify Configuration Completion
- Upload a typical construction engineering research report, check whether the knowledge base parsing result retains core fields such as cost units and project ID, and verify whether the segment length configuration adapts to the document structure.
- Initiate a multi-turn dialogue: first ask about the project cost, then follow up with a question about specific construction processes, check whether the context retains the project information from the previous round of questions, and verify that the
maxContextconfiguration is effective. - Call the API to upload the document, check whether the returned status code is
200 OK, and verify that theUPLOAD_FILE_MAX_SIZEconfiguration matches the document size. - Adjust the
similarityThreshold, then initiate a query containing unit keywords, check whether the recalled results include research report content with corresponding units, and verify that the threshold configuration is reasonable.
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.