What the data for this category looks like
Data for aviation equipment financing daily reports comes primarily from publicly disclosed financing announcements of listed companies on domestic and overseas exchanges, official project announcements from aviation equipment manufacturing enterprises, and monthly special reports from industry associations. Updates occur daily. Each document typically contains multiple financing projects. The document structure mostly uses a fixed header followed by a project list, with dedicated fields including financing subject, financing amount, currency, financing method, supporting aircraft models, delivery cycle, and more. Some documents include high-resolution equipment diagrams and nested table structures. Units are mostly marked as CNY 10,000 or USD 10,000.
What constraints do these characteristics impose on document parsing and chunking
The dedicated data characteristics of aviation equipment financing daily reports impose multiple constraints on the document parsing and chunking process. First, documents contain a large number of aviation-specific terms such as aero engines, complete aircraft, supporting models, and more. Accurate entity recognition is required to avoid parsing breaks. Second, fields with mixed currencies and units require correct matching of amounts to their corresponding units. Failure to do so will invalidate business fields after chunking. Third, daily batch updates involve a large number of document batches. Each individual document is moderate in length, but batch processing requires adjustments to concurrency parameters. Fourth, financing projects are strongly linked to specific equipment models. Chunking must retain contextual associations to avoid breaking complete business logic.
How to set the configuration
| Configuration Item | Recommended Value | Rationale for This Value |
|---|---|---|
PARSE_FILE_TIMEOUT_SECONDS | 600 seconds | Aviation equipment financing daily reports contain long tables and professional terms, so parsing takes longer than general documents. The default threshold cannot cover the full parsing process |
CHUNK_SIZE | 800–1200 characters | Sufficient context must be retained to carry the linked information between financing projects and supporting aircraft models, to avoid chunking breaking business logic |
CHUNK_OVERLAP | 150–200 characters | Cross-chunk professional term associations must be retained to ensure that complete equipment financing business information can be matched during subsequent retrieval |
PARSE_BATCH_CONCURRENCY | 3–5 concurrent processes | Adapt to daily batch-updated document batches, to avoid exhausting computing resources on a single node |
UPLOAD_FILE_MAX_SIZE | 500 MB | Some documents include high-resolution equipment diagrams and multi-page nested tables, so the single-file upload limit must be relaxed |
ENABLE_TERM_RECOGNITION | Enabled | Enable entity recognition for aviation-specific equipment terms to improve parsing accuracy |
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. It is recommended to test on your own samples before finalizing settings.
Three common mistakes
- Phenomenon: A
504 Gateway Timeouterror is returned when calling the document parsing tool. Cause: ThePARSE_FILE_TIMEOUT_SECONDSparameter is not adjusted. Parsing long tables and professional terms in aviation equipment financing daily reports takes longer than the default threshold. - Phenomenon: The 4.8.12 self-hosted version cannot parse nested tables and professional formulas in documents. Cause: The used parsing plugin version is too low, and does not adapt to the complex typesetting structure of aviation equipment financing daily reports.
- Phenomenon: Information about the same financing amount and supporting aircraft models is split into different chunks in the chunking result. Cause: The
CHUNK_SIZEis set too small, and business-related contextual content is not retained.
How to confirm the configuration is correct
- Upload a typical aviation equipment financing daily report document, and check whether professional terms in the parsing result are correctly recognized.
- Randomly sample multiple chunking results, and check whether information about the same financing amount, currency, and supporting aircraft models is contained within the same chunk.
- Batch upload 10 documents of the same type, and check whether the parsing tool can complete all tasks normally without timeout errors.
- After adjusting chunking-related parameters, compare chunking completeness under different values to confirm that it meets business requirements.
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.