What the Data for This Category Looks Like
Data for securities intelligent due diligence reports mainly comes from listed companies' regular announcements, special brokerage research reports, regulatory disclosure documents, and corporate due diligence working papers. Update rhythm fluctuates with disclosure timelines: regular reports are updated in batches quarterly and annually, while temporary announcements and special research reports are released as research progresses. Most documents are in PDF format, some contain embedded Excel tables. Structures include fixed sections: basic due diligence target information, financial data modules, and risk warning chapters. Fields include earnings per share, return on net assets, revenue growth rate, etc., with corresponding unit markers attached.
What Constraints Do These Characteristics Impose on the "Document Parsing and Chunking" Link
The multi-source and structured nature of securities due diligence reports creates multiple constraints for the parsing and chunking process. Mixed-format documents require simultaneous support for PDF and embedded table structured extraction, to avoid splitting financial tables into unordered text. High-frequency updated batch documents need efficient parsing workflows to reduce per-file processing time. Unit markers for specific fields must be accurately identified to prevent confusion between different types of financial data during chunking. Chunking long documents needs to retain contextual connections, to avoid splitting the same business analysis and corresponding financial indicators into different chunks.
How to Configure the Settings
| Configuration Item | Recommended Setting | Rationale |
|---|---|---|
pdf_parse_mode | structured | Meets the parsing needs of a large number of structured financial tables in securities due diligence reports, retaining table rows, columns and header structure |
chunk_size | 800-1200 characters | Matches the length of financial analysis paragraphs and associated data in due diligence reports, avoiding splitting core business and data blocks |
chunk_overlap | 100-150 characters | Retains contextual connections across chunks, ensuring financial indicators and corresponding analysis text can be recalled simultaneously |
parse_table_enable | Enabled | Enables built-in table parsing logic to extract embedded Excel tables and structured data from due diligence reports |
max_parse_timeout | 120 seconds | Adapts to the parsing time of large annual due diligence reports, avoiding parsing interruptions due to timeouts |
enable_pdf_marker | Enabled | Optimizes parsing effects for complex PDF layouts, improving recognition accuracy of tables and formulas |
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. Specific issues require case-by-case analysis, and it is recommended to test on your own samples before finalizing settings.
Three Common Errors
- Phenomenon: The PDF enhanced parsing function cannot be enabled, and the interface prompts that the parsing plugin is not ready. Cause: The
enable_pdf_markerparameter is not configured correctly, or the corresponding parsing component has not been deployed. - Phenomenon: The
/v2/parse/fileinterface returns a 408 timeout error. Cause: Themax_parse_timeoutparameter is not adjusted, and the parsing time of large annual due diligence reports exceeds the default threshold. - Phenomenon: Financial indicators and corresponding analysis text are separated after chunking, and cannot be recalled through retrieval association. Cause: The
chunk_sizeis set too small, splitting the indicator description and data of the same paragraph into different chunks.
How to Confirm the Configuration Is Properly Set
- Upload a single standard securities due diligence report PDF, and check whether the tables in the parsing result retain complete row and column structures and corresponding header information.
- Call the
/v2/parse/fileinterface, view the returnedparsed_contentfield, and confirm that structured table data has been correctly extracted. - View the chunked result list, and confirm that the same segment of financial analysis and associated indicators are not split into different chunks.
- After configuring the API pull rule, test pulling files from the specified data source, and confirm that the returned file list matches the actual data source.
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.