What the data for this category looks like
Chemical fiber industry marketing documents mainly originate from internal product manuals of chemical fiber enterprises partnered with financial institutions, raw material inspection reports, downstream application case collections, and industry standard documents. Update cycles are triggered by new product launches, process adjustments, or industry standard updates. Most documents follow a fixed template. The opening section includes a product core parameter table. The middle section covers process descriptions and application scenario details. The closing section includes compliance statements and contact information. Common fields in these documents include fineness (unit: dtex), breaking strength (unit: cN/dtex), and melting point (unit: ℃). Parameter differences between different product models are often compared in table form. Some documents also include high-definition product images and process flow diagrams.
What constraints do these characteristics impose on document parsing and chunking?
The structured parameter tables and professional units in chemical fiber marketing documents require the parsing process to fully retain table structures and unit associations. This prevents parameters and their units from being split into different chunks. Long process descriptions and cross-model parameter comparison content require chunk lengths to adapt to the complete expression of professional terms. This avoids truncating core information. The binding relationship between inserted images and parameter descriptions requires the parsing process to associate images with their corresponding parameter blocks. This prevents misalignment. The fixed template structure also requires parsing logic to adapt to the common layout of parameters first, followed by processes. This improves parsing accuracy.
How to set configurations
| Configuration Item | Recommended Setting | Rationale |
|---|---|---|
PARSE_TABLE_ENABLE | Enabled | Chemical fiber documents contain a large number of structured parameter tables for metrics like fineness and strength. Retaining table structure ensures complete association between parameters and their units |
chunk_size | 1200–1500 characters | Chemical fiber professional terms are relatively long. Chunk length should match the complete expression of a single process description or parameter group, to avoid truncating professional content |
chunk_overlap | 150–200 characters | Ensures coherent context for professional terms across chunks, and prevents parameters and their units from being split into different chunks |
UPLOAD_FILE_MAX_SIZE | 500 MB | Chemical fiber marketing documents often include high-definition product images and process flow diagrams. Allowing larger file uploads enables complete import of all materials |
PARSE_FILE_TIMEOUT_SECONDS | 300 seconds | Long document parsing requires sufficient time to process tables and image associations, to avoid parsing timeouts |
The parameter values provided on this page are common 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 against your own samples before finalizing settings.
Three common mistakes
- Symptom: A memory overflow error is reported after starting the parsing service, and the log shows no available GPU is detected. Cause: CUDA environment variables are not configured correctly, or the
/dev/nvidia*device mapping is not mounted when starting Docker. When using CUDA version 12.8 and graphics card driver version 570, missing this configuration will prevent FastGPT from calling the specified graphics card resources. - Symptom: Unit fields in parameter tables are lost in the parsed Markdown document. Cause: The
PARSE_TABLE_ENABLEconfiguration is not enabled. The default parsing logic only extracts plain text content, and does not retain table structures and associated units. - Symptom: A single chunk contains multiple unrelated product parameter groups in the chunking results. Cause: The
chunk_sizesetting is too small, forcing content across parameter groups to be split. This damages the integrity and readability of the parameters.
How to confirm configurations are correct
- Upload a chemical fiber product manual containing a fineness parameter table, and check if the parsed Markdown retains the complete table structure and unit fields.
- Check the service logs to confirm the specified model of GPU and available video memory are detected, with no memory overflow errors.
- Manually split a long process description document, and verify that the chunking results completely retain professional terms and associated parameters without truncation.
- Test uploading a chemical fiber marketing document containing images with a size under 500 MB, and confirm the parsing process does not time out or interrupt.
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.