What Data for This Category Looks Like
The main sources of coatings and inks related data include batch certificates of analysis (COA) issued by raw material suppliers, national and industry-issued coating testing standard documents, monitoring data released by industry associations, and original equipment manufacturer product technical specifications. Update cadence varies by data source type: Raw material COAs are updated with each batch shipment. National standard documents are revised annually. Industry monitoring data is updated monthly. Most documents use structured formats, with fields including raw material grade, solid content, VOC content, fineness, adhesion grade, and similar items. Common field units are g/L, %, μm, and other standard units.
Constraints Imposed by These Characteristics on the "Citation Sources and Traceability" Link
The batch-bound nature of coatings and inks data requires traceability information to be linked to specific batch numbers. Only using product names as the sole traceability identifier is not permitted. Different versions of national standard documents have differing parameters. Document version numbers must be recorded during traceability to avoid citing expired content. The multi-field structure with specific units requires retaining original fields and units during traceability. Unauthorized conversions are not allowed. Individual documents are lengthy. When chunking for parsing, chapter metadata must be retained to ensure traceability can locate specific content paragraphs. Monthly updated industry data requires labeling of collection times to confirm cited content is currently valid. These characteristics collectively require the citation traceability link to cover multiple dimensional identifiers including batch, version, unit, chapter, and collection time to ensure accurate and effective traceability.
How to Configure Settings
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
Recall count | Top 8-12 entries | Single chunked content for coatings and inks is precise and fields are concentrated. Excessive recall will exceed citation limits and increase traceability complexity |
Similarity threshold | 0.72-0.80 | Raw material testing data has high feature word density. A threshold that is too low will introduce irrelevant general industry data and reduce traceability accuracy |
maxContext | 1200-1800 characters | The key chunk length of individual coatings and inks quality inspection reports is moderate. This value balances context completeness and citation length limits |
PARSE_CHUNK_KEEP_HEADER | Enabled | Document metadata including batch numbers, version numbers, and chapter titles must be retained to enable accurate traceability |
Citation limit | 1000-1500 characters | Due diligence reports require clear display of citation sources. This value avoids overly long citations that harm reading experience |
Document Version Matching Switch | Enabled | Coatings and inks standard documents are revised annually. This configuration filters matching version data sources to avoid citing expired content |
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. Each scenario requires individual analysis. Testing against local samples prior to finalization is recommended.
Three Common Misconfigurations
- Phenomenon: Traceability information cited in responses only includes the file name, and does not display batch numbers or version numbers. Cause: The
PARSE_CHUNK_KEEP_HEADERconfiguration is not enabled, and document metadata is not retained. - Phenomenon: After setting the citation limit to 1500 characters, the retrieved chunked content exceeds the limit, preventing complete display or triggering truncation errors. Cause: The number of recalled entries is not restricted. The total length of spliced excessive chunks exceeds the citation limit, and compliant truncation of spliced content is not performed.
- Phenomenon: Cited standard document content does not match current due diligence requirements, and expired version parameters appear. Cause: The document version matching switch is not enabled, and standard document versions in the knowledge base are not filtered, leading to citation of outdated revised content.
How to Verify Proper Configuration
- FastGPT 4.6.7 and later versions may be used to upload a real coatings and inks raw material COA document, trigger knowledge base parsing, and check if parsed chunked content includes metadata such as batch numbers and document version numbers.
- Initiate a query about coatings and inks raw material VOC content, and check if cited traceability information in responses includes complete source identifiers including file name, version number, and chapter where the chunk is located.
- Adjust the configuration for recalled entries and citation limit, initiate multiple queries, and verify that the total length of cited content displayed in responses matches the set limit requirements.
- Upload multiple versions of the same coatings and inks standard document, initiate a query, and confirm that responses only cite content from the currently matching version of the document.
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.