What Data for This Category Looks Like
Specialized equipment investment research data mainly comes from manufacturer technical white papers, industry standard documents, equipment operation logs, patent literature and third-party inspection reports. Update cycles include quarterly manufacturer manual updates, irregular industry standard revisions, and real-time equipment operation logs. Document structures mostly include structured parameter tables, multi-page technical appendices, troubleshooting process text and embedded performance charts. Fields include equipment model, rated power, rotational speed, production batch and other items. Units mostly use industrial standard units such as kW, r/min.
What Constraints Do These Characteristics Impose on the "Document Parsing and Chunking" Link
Structured parameter tables require the parsing stage to accurately identify cell fields and units, and avoid mixing parameter items from different equipment. Multi-page long documents and real-time updated operation logs require the chunking stage to balance semantic completeness and incremental parsing efficiency. Embedded charts and formulas need to retain association with corresponding text, and prevent chunking from breaking the binding between technical descriptions and data. Special encoding formats of industrial documents require the parsing stage to adapt to non-general character encodings, and avoid parsing errors.
How to Set the Configurations
| Configuration Item | Recommended Setting | Rationale |
|---|---|---|
PARSE_TABLE_ENABLE | true | Specialized equipment investment research documents contain a large number of structured parameter tables. Full extraction of cell fields and units is required to avoid parameter confusion |
maxChunkSize | 800–1200 characters | Balance semantic completeness of technical parameter blocks and process text, avoid splitting cross-page equipment performance descriptions or continuous troubleshooting steps |
chunkOverlap | 100–150 characters | Retain contextual association between troubleshooting processes and parameter descriptions, prevent chunking from breaking continuous technical logic |
PARSE_FILE_TIMEOUT_SECONDS | 600 seconds | Adapt to parsing time of multi-page long technical white papers and batch operation logs, avoid interruptions during large document parsing |
UPLOAD_FILE_MAX_SIZE | 1000 MB | Accommodate batch equipment operation logs, large technical manuals, patent literature and other investment research materials |
enableIncrementalParse | Triggered by document hash | Adapt to high-frequency updated equipment operation logs, only parse newly added or modified document content to improve processing efficiency |
The parameter values provided on this page are conventional recommendations used as a starting point for configuration. Actual values are affected by material form, data volume and business rules. Specific issues require individual analysis. It is recommended to test on your own samples before finalizing settings.
Three Common Mistakes
- Uploading PPT or PDF documents results in parsing errors, with logs showing
the argument ‘windows-1252’ is invalid encoding. The cause is that the embedded text encoding of the document is not automatically recognized, and the default encoding adaptation logic does not cover industrial encoding formats commonly used in specialized equipment documents. This is common in deployment scenarios of the pdf-marker function in version v4.8.17. - Fields and units of equipment parameter tables are lost in chunking results, or table content is split into scattered text blocks. The cause is that the
PARSE_TABLE_ENABLEconfiguration is not enabled, or the table parsing threshold is set too low, causing structured content to be misjudged as ordinary text and split. - Knowledge base recall results only return scattered equipment parameters, with no associated usage scenarios or troubleshooting descriptions. The cause is that the chunk overlap length is set too small, breaking the contextual association between parameters and corresponding technical descriptions, and preventing complete investment research information blocks from being formed.
How to Confirm the Configuration Is Correct
- Upload a piece of equipment technical white paper containing structured parameter tables, check if the parsed text fully retains table field names, numerical values and corresponding units.
- Upload an industrial document with abnormal encoding, check that the parsing logs show no error messages and the text content is fully readable.
- Adjust the chunking parameters, test that the chunking results retain continuous troubleshooting process text with no mid-way breaks.
- Upload batch equipment operation log documents, verify that the incremental parsing function only processes newly added or modified files, without repeating parsing of full content.
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.