What Data for This Category Looks Like
The data for duty-free intelligent due diligence reports primarily comes from customs clearance documents, duty-free business qualification approval documents, offline store sales ledgers, and online mall transaction records. Update frequency varies by business scenario: qualification-related documents are updated quarterly or annually, while sales data is synced daily or weekly. Most documents are structured tables, containing fields such as duty-free qualification number, business category scope, monthly verification quota, and customs dutiable value. Units are mostly RMB yuan, number of goods, and verification batch numbers. Some documents also include unstructured policy interpretation attachments.
Constraints for Document Parsing and Chunking
The high proportion of structured tables requires the parsing module to prioritize identifying table row and column structures, to avoid losing content from merged cells. Mixed data from multiple sources requires chunking to split content by business modules (qualification, sales, verification), to avoid mixing cross-module content. The fixed field format of qualification-related documents requires chunking to preserve the correspondence between fields and values, without disrupting their association. The high proportion of short text in unstructured attachments requires adjusting chunk length to adapt to short content. The timeliness of duty-free data requires that parsing and chunking do not introduce excessive redundant delay, to adapt to frequently updated sales documents.
How to Configure Settings
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
PARSE_TABLE_ENABLE | true | Structured tables account for a high proportion in duty-free due diligence reports. Enabling this option preserves row and column association relationships and avoids content misalignment |
chunkSize | 800–1200 characters | Duty-free documents include long table rows and policy attachments. This range balances the completeness of single-chunk content and subsequent retrieval accuracy |
chunkOverlap | 100–150 characters | Prevents chunk breaks across tables or qualification fields, preserving contextual association |
PARSE_FILE_TIMEOUT_SECONDS | 600 seconds | Large duty-free verification ledger documents take longer to parse. This duration covers most scenarios |
UPLOAD_FILE_MAX_SIZE | 1000 MB | Adapts to the file size of annual summary duty-free due diligence reports |
tableChunkMergeThreshold | 0.7 | Similarity threshold for merging adjacent table chunks, preventing tables from the same verification cycle from being split too finely |
The parameter values provided on this page are common recommended starting points for configuration setup. Actual values are affected by material format, data volume, and business rules. Specific issues require case-by-case analysis. It is recommended to test on your own samples before finalizing settings.
Three Common Configuration Mistakes
- Calling the parsing interface returns an empty result, with split-related errors in the logs. The cause is that the
PARSE_TABLE_ENABLEconfiguration is not enabled. Structured tables cannot be correctly split, causing the parsing module to fail to generate valid chunks. - After deploying version 4.9.0 via Docker, the file parsing module fails to properly receive uploaded files. The cause is that the file storage mount path is not configured correctly, preventing the parsing module from reading uploaded duty-free due diligence report files.
- Enabling document enhanced parsing does not take effect, and normal functionality is restored after switching to version 4.8.20. The cause is that the enhanced parsing module in version 4.9.0 relies on specific environment dependency packages. The enhanced parsing logic cannot be triggered if the packages are not installed correctly.
How to Verify Proper Configuration
- Upload a standard duty-free business qualification approval document, and check if the parsed result's table fields fully retain key information such as duty-free qualification number and business category.
- After calling the parsing interface, verify that the returned chunk list splits content by business module, with no cross-module mixing.
- Check the parsing logs to confirm that no split-related errors occur, and that parsing time falls within the range set by
PARSE_FILE_TIMEOUT_SECONDS. - Compare the content of different chunks to confirm that adjacent chunks contain overlapping content matching the
chunkOverlapsetting, with no key field breaks.
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.