What the data for this category looks like
Data for this category mainly comes from public annual/quarterly reports issued by industrial park management committees, industry association survey documents, internal operation logs of park operators, and public information released by land and housing construction departments. Update frequency varies by data type: quarterly public reports, monthly operation logs, and real-time updates for investment promotion and policy changes. Most documents include modules such as park location overview, settled enterprise details, operation indicators, policy support clauses, and future planning blueprints. Fields involved include fixed asset investment amount, rent per unit area, output per mu, number of settled enterprises, planned carrying capacity, and more. Some documents have attached content such as survey drawings and fragments of policy documents.
What constraints do these characteristics impose on the "document parsing and chunking" link
Multi-source and heterogeneous document formats create parsing adaptation constraints. The system must support multiple input types including PDF public reports, Word operation logs, and Excel enterprise details, to avoid loss of structured content in some formats. For structured tables such as settled enterprise details and operation indicators, chunking must retain the association between table fields and values, and cross-row or cross-column table content must not be split into different chunks. For operation indicators with clear units such as rent per unit area and output per mu, fields must be bound to corresponding values and units during chunking, to avoid separating units from values. Scattered real-time investment promotion information must be aggregated by theme instead of using fixed page length aggregation, to ensure complete information during retrieval.
Configuration Settings
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
maxFileSize | 500 MB | Industrial park annual reports and operation logs often contain large numbers of charts and detailed data. 500 MB covers most document size limits |
chunkSize | 800–1200 characters | Complete semantic units such as settled enterprise details and policy clauses must be retained, to avoid splitting the same analysis segment into different chunks |
chunkOverlap | 100–150 characters | For cross-paragraph related content such as operation indicators and location analysis, overlapping segments ensure complete context during retrieval |
tableExtractMode | Preserve complete row and column associations | Settled enterprise details and land use tables need to fully extract cell content and row/column correspondence, to avoid loss of structured data |
parseTimeout | 300 seconds | Large industrial park annual reports contain large numbers of charts and detailed data. 300 seconds covers most parsing time requirements |
extractImageText | Enabled | Policy document fragments and survey annotation text attached to some park reports need to be extracted, to avoid missing key information |
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.
Three Common Errors
- Phenomenon: Files remain in the pending parsing queue for a long time after upload, and the parsing node shows no working status. Cause: The
maxFileSizeconfiguration value is smaller than the actual uploaded document size, causing the parsing engine to refuse to load the file. - Phenomenon: Structured tables only extract partial rows or columns, and complete enterprise details are lost. Cause: The
tableExtractModeconfiguration is set to only extract the first row or single column, and the complete row and column association mode is not enabled. - Phenomenon: Retrieval results after chunking show separated units and values, such as "output per mu" only displaying the value without the corresponding unit. Cause: The
chunkSizeconfiguration value is too small, splitting operation indicators with bound units into different chunks.
How to Confirm Proper Configuration
- Upload a typical industrial park annual report, check the parsed text preview to confirm that all structured table contents are fully extracted with no missing rows or columns.
- Check the chunked text list to confirm that operation indicators with units are not split, and fields, values and units are bound in the same chunk.
- Upload documents in different formats such as PDF, Word, Excel, to confirm that the parsing engine can normally load and complete chunking.
- Check the parsing logs to confirm that there are no error records of file size exceeding limits or parsing timeouts.
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.