Data Characteristics for This Category
The data for infrastructure construction intelligent due diligence reports mainly comes from bidding announcements, construction logs, cost accounting documents, supervision weekly reports, and completion archive materials. The data update rhythm is adjusted according to project progress: released intensively during the bidding phase, updated monthly or by milestones during the construction period, and archived after completion. Documents usually include modules such as project overview, bill of quantities, cost details, progress milestones, and compliance approval documents. Most fields carry professional units: for example, construction mileage is measured in meters, cost in ten thousand yuan, and construction period in calendar days.
Constraints on Multi-turn Dialogue and Prompt Engineering
Documents for infrastructure construction due diligence reports have large volume and contain numerous nested tables and professional fields. Multi-turn dialogue must carry context for multiple related questions to avoid losing core project information due to context truncation. Units and measurement rules for professional fields follow unified industry standards, so prompts must clearly specify output formats and units to prevent unit confusion. Data update frequency is relatively high, so multi-turn dialogue must support queries for the latest milestones, and the knowledge base must regularly sync updated document content. The complex document structure requires prompts to guide the model to accurately extract information from specified modules, meeting the precision requirements of professional queries.
Configuration Settings
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
maxContext | 8000–12000 characters | Infrastructure construction due diligence reports often contain multi-page bills of quantities and cost details. Excessively long context will cause the model to forget core field requirements |
PARSE_FILE_TIMEOUT_SECONDS | 600 seconds | Word documents over 10 MB containing numerous nested tables and images take a long time to parse, so the timeout threshold must be extended |
RECALL_TOP_K | Top 8–12 results | Infrastructure construction data has many professional fields, so enough relevant fragments must be recalled to cover dimensions such as cost, progress, and compliance |
SIMILARITY_THRESHOLD | 0.75–0.85 | Differentiate between professional terms and general construction expressions to avoid recalling irrelevant general construction documents |
UPLOAD_FILE_MAX_SIZE | 2000 MB | Support importing single large infrastructure construction due diligence reports, adapting to 10+ MB Word files |
PROMPT_TEMPLATE | Answer in the format of "project name + field name + standard unit" | Clearly require outputs to comply with professional measurement rules for infrastructure construction, avoiding unit confusion |
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 Mistakes
- Phenomenon: A
504 Gateway Timeouterror is returned after uploading a Word document over 10 MB for infrastructure construction. Cause: ThePARSE_FILE_TIMEOUT_SECONDSparameter was not adjusted, and the default threshold is insufficient to handle large documents with many nested tables. - Phenomenon: After consecutive questions in multi-turn dialogue, the model fails to associate the previously mentioned project name. Cause: The
maxContextparameter was not adjusted to a length sufficient to cover multi-turn interactions, and early project information in questions was truncated. - Phenomenon: The returned cost results mix "yuan" and "ten thousand yuan" units. Cause: The prompt did not clearly specify the standard unit corresponding to the field, and did not constrain the model to strictly comply with professional measurement rules for infrastructure construction.
How to Verify Proper Configuration
- Upload a Word due diligence report for infrastructure construction over 10 MB, and check that the parsing task completes within the preset timeout period with no timeout errors.
- Launch targeted queries, such as "What is the construction mileage of XX project", and check that the returned result includes a clear professional unit and matches the data marked in the document.
- Launch 3 consecutive related questions: first ask for the project overview, then ask for cost details, and finally ask for progress milestones, and check that the model can associate the previously mentioned project name and core information.
- View the knowledge base recall log, and confirm that all recalled text fragments come from the recently uploaded infrastructure construction due diligence report, with no irrelevant documents mixed in.
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.