What This Type of Data Looks Like
Data sources for building construction project financing daily reports include bank statements from project-specific special accounts, general contractor payment receipts, subcontractor payment applications, and financing institution loan notifications. The update frequency is daily. Documents are primarily structured tables, with attached voucher scan attachments. Core fields include project ID, financing amount, daily revenue and expenditure amount, account balance, payer, payee, and voucher number. Units are uniformly ten thousand yuan or yuan. Date fields are precise to the calendar day.
What Constraints These Characteristics Impose on Multi-turn Dialogue and Prompting
Multi-turn dialogue must support OCR parsing of attachments and structured field extraction, without breaking field associations. This is required because the data includes structured tables and voucher attachments. The dialogue system must only recall financing data from the current day or a specified time period to avoid interference from redundant information, as the data is updated daily. Prompts must clearly specify field matching rules. This avoids confusion between amount units or incorrect project matching, as field units and identifiers have strong uniqueness. Retain associated project IDs in the context during multi-turn follow-up questioning. This ensures subsequent questions can accurately locate the financing details of the corresponding project.
How to Configure Settings
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
UPLOAD_FILE_MAX_SIZE | 500 MB | Voucher attachments for building construction project financing daily reports are mostly batch scans, single files do not exceed 100 MB, setting the total upload limit to 500 MB adapts to batch upload requirements |
maxContext | 8000–12000 characters | Financing daily reports contain multiple sets of structured fields, the context must retain key information such as project IDs and revenue and expenditure details from multi-turn dialogue, to avoid truncating core content |
PARSE_FILE_TIMEOUT_SECONDS | 300 seconds | OCR parsing of large voucher scan files requires long processing time, preventing timeout interruptions to the parsing process |
| Recall Count | Top 6 entries | The valid revenue and expenditure entries of a single building construction project financing daily report do not exceed 5, recalling 6 entries can cover all details and avoid redundancy |
| Similarity Threshold | 0.75 | Project IDs and amount fields in financing daily reports have strong uniqueness, a threshold that is too low will introduce irrelevant project data, a threshold that is too high will miss similar entries |
| Chunk Length | 1000 characters | Each row of structured tables contains long content, too short chunk length will break the association logic between fields and vouchers |
The parameter values provided on this page are all conventional recommendations used as a starting point 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.
Three Common Misconfigurations
- Phenomenon: After upgrading to 4.14.3, uploading attachments prompts
fail to create post presigned url. Cause: Cross-origin rules or access permissions for S3 storage are not configured correctly. Voucher attachments for building construction project financing daily reports are mostly stored via S3, and incorrect configuration causes signature generation failure. - Phenomenon: Uploading files or text datasets fails, but the template import function works normally. Cause:
UPLOAD_FILE_ALLOWED_EXTENSIONSis not set correctly. Vouchers for building construction project financing daily reports include formats such as pdf, jpg, and failing to configure the corresponding extensions causes upload blocking. - Phenomenon: Unable to associate financing details for a specified project during multi-turn dialogue. Cause: The binding project ID field is not specified in the prompt, causing the context to fail to match the daily report data for the corresponding project.
How to Verify Correct Configuration
- Upload a single voucher attachment for a building construction project financing daily report, check whether the upload status is normal, and confirm that there are no errors in signature generation.
- Initiate a multi-turn dialogue, sequentially ask about financing revenue and expenditure situations for different dates, and check whether the context retains the previously mentioned project IDs.
- View the parsed document fields, and confirm that core fields such as project ID and revenue and expenditure amount are correctly extracted.
- Trigger an incremental recall task, and check whether only the financing daily report data updated on the current day is pulled, without introducing historical redundant content.
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.