What the data for this category looks like
Data sources for decoration and renovation intelligent due diligence reports cover construction logs, material supplier quotation sheets, PDF completion acceptance reports, Excel project ledgers, property filing documents, and more. Update cadence follows construction milestones or monthly cycles. Documents are archived after project completion. Core document structure modules include basic project information, material detail lists, construction progress records, expense settlement forms, and acceptance milestone reports. Fields and units have distinct specific characteristics. For example, construction area uses square meters as the unit, material unit prices use yuan per square meter or yuan per piece, settlement amounts use yuan, and construction cycles use days.
Constraints on the document parsing and chunking process
Multi-source, multi-format document structures require parsing logic to adapt to field extraction rules for different file types. This avoids field mapping errors. Frequently updated document content requires moderate chunk length. Chunks must not be too coarse, which would break context association. Chunks must not be too fine, which would cause information redundancy. Nested material lists and settlement forms require the parsing and chunking steps to retain table and hierarchical associations. Core fields and their corresponding units must not be split apart. Widespread use of specific units requires configuring targeted entity recognition rules. This ensures unit information is not omitted or confused.
How to set configurations
| Configuration Item | Recommended Setting | Rationale |
|---|---|---|
PARSE_FILE_MAX_SIZE | 500 MB | Decoration and renovation due diligence reports often contain large numbers of construction drawings and long documents. This setting adapts to parsing requirements for multi-format large files |
chunk_size | 800–1200 characters | Decoration and renovation documents contain large numbers of detail fields with units. A moderate chunk length retains complete context for material lists and construction milestones |
chunk_overlap | 100–150 characters | Prevents chunking from splitting cross-page construction progress records, ensuring context coherence |
PARSE_TABLE_MODE | Retain complete table structure | Material quotation sheets and expense settlement forms in decoration and renovation documents are core information. Splitting tables would lose the correspondence between fields and units |
ENABLE_PARENT_CHUNK | Enabled | Decoration and renovation project documents have multi-level classifications, such as project overview → material categories → specific materials. Parent-child chunking retains hierarchical associations |
PARSE_FILE_TIMEOUT_SECONDS | 600 seconds | Parsing large PDF construction drawings takes a long time. This timeout setting adapts to complex document processing |
PARSE_OUTPUT_FORMAT | markdown | Decoration and renovation documents contain tables and hierarchical structures. Markdown format retains the original document’s layout and associations |
The parameter values provided on this page are common starting points for configuration. Actual values are affected by material formats, data volume, and business rules. Each case requires specific analysis. It is recommended to test on your own samples before finalizing settings.
Three common mistakes
- Phenomenon: Knowledge base recall results only return scattered material unit prices, without corresponding project context. Cause: Chunk length is set too small, splitting the associated content between material lists and basic project information.
- Phenomenon: The parsed text stream is unformatted plain text, unable to restore table and hierarchical structures. Cause: Markdown format output is not configured, the default configuration only outputs raw text.
- Phenomenon: Some files fail to parse when uploading multiple decoration documents in batch. Cause:
PARSE_FILE_TIMEOUT_SECONDSis not adjusted to adapt to large drawing files, the default timeout duration is insufficient.
How to confirm the configuration is correct
- Upload a single docx document containing material tables. Check if the table structure in the parsing preview is complete, to confirm the configuration takes effect.
- Batch upload 3 to 5 decoration documents of different formats. Check the parallel processing status of the task queue, to confirm the batch upload configuration adapts to the current number of files.
- View the chunked text fragments. Confirm that complete field and unit information is included, to verify the chunking configuration matches document characteristics.
- After enabling parent-child chunking, view the document hierarchy list in the knowledge base, confirm that the association between project overview and sub-material lists is retained.
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.