What the Data for This Category Looks Like
The financial report data for the construction and decoration industry primarily comes from publicly disclosed annual/quarterly financial report PDFs of listed companies, internal operational Excel ledgers, and bidding award documents. Update cadence aligns with corporate operating cycles, following natural quarters and fiscal years. Document structures typically include project detail ledgers, revenue breakdown tables, and cost composition tables. Some long documents exceed 1,000 pages. Fields include contract amount, completion rate, cost per square meter, labor proportion, and more. Common units are ten thousand yuan, square meters, and project duration days. Some documents mix similar data with different units.
Constraints on Document Parsing and Chunking
Thousand-page PDF financial reports can cause single-batch parsing timeouts. Parsing units must be split to adapt to system carrying capacity. Ten-thousand-row Excel ledgers, when using default chunking, split multi-row data from the same project. This leads to lost associated information during subsequent RAG matching. Documents mixing text and engineering drawing screenshots require filtering non-text blocks to prevent invalid chunks from interfering with analysis. Scenarios with inconsistent field units require standardized parsing before chunking. Without this step, subsequent data analysis will have deviations.
How to Set Configurations
| Configuration Item | Recommended Approach | Rationale |
|---|---|---|
PARSE_PDF_PAGE_RANGE | Split in batches by the first and last page numbers of the document, with no more than 200 pages per single parse | Adapt to the parsing time of thousand-page financial reports and avoid single-batch task timeouts |
CHUNK_SIZE | 800-1200 characters | Retain complete context for single projects in construction and decoration financial reports, avoid context breaks caused by overly short chunks or matching redundancy caused by overly long chunks |
EXCEL_PARSE_HEADER_MODE | Automatically identify headers and bind subsequent row data | Adapt to the fixed header format of ten-thousand-row ledgers, avoid chunking that separates headers from corresponding data |
PARSE_FILE_TIMEOUT_SECONDS | 600 seconds | Cover the maximum parsing time for thousand-page PDFs and ten-thousand-row Excel files |
TEXT_CHUNK_OVERLAP | 100-150 characters | Retain project-associated information across chunks, improve the accuracy of RAG matching |
ENABLE_IMAGE_PARSE | Disabled | Engineering drawing screenshots in construction and decoration financial reports have no effective analytical value; disabling this reduces invalid chunks |
The parameter values provided on this page are common starting points for configuration. Actual values are affected by material format, data volume, and business rules. Each scenario requires individual analysis. Testing on local samples is recommended before finalizing settings.
Three Common Misconfigurations
- When parsing ten-thousand-row construction and decoration Excel ledgers, the system returns the prompt "It appears an incomplete command or request was submitted". Cause:
EXCEL_PARSE_HEADER_MODEis not configured, causing chunking to separate headers from data rows, and the model cannot recognize data association logic. - When submitting a RAG classification matching task, a single recall result contains excessive long text with overly coarse granularity. Cause: The
CHUNK_SIZEparameter is not adjusted, and the default value for general categories is used, which does not adapt to the short paragraph characteristics of construction and decoration financial reports. - Thousand-page PDF financial report parsing tasks fail and return a timeout status code. Cause:
PARSE_PDF_PAGE_RANGEis not split, and the number of pages parsed in a single batch exceeds the system's carrying limit, triggering timeout restrictions.
How to Confirm Proper Configuration
- Upload a single typical-length construction and decoration financial report PDF, monitor the execution status of the parsing task, and adjust page splitting parameters until the task has no timeout errors.
- Import a ten-thousand-row construction and decoration project Excel ledger, check whether chunked text completely retains the associated information of a single project, and adjust chunking parameters until requirements are met.
- Test parsing documents containing engineering drawing screenshots, confirm that non-text content is not incorrectly parsed into text chunks, and adjust image parsing switch parameters.
- Initiate a RAG classification matching test, check the coverage of recall results, and adjust chunk overlap parameters to ensure context association.
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.