What the data for this category looks like
Chemical fiber investment research data sources include upstream petrochemical raw material spot quotes, domestic textile enterprises' monthly production capacity ledgers, customs statistics on imports and exports of chemical fiber products, industry association research reports, and spot transaction delivery records. Update frequencies vary across sources: spot prices are updated daily, production capacity and import and export data are released weekly, and industry research reports are updated monthly. Documents include structured tables of prices, denier, and strength; semi-structured industry analysis paragraphs; and unstructured enterprise announcements. Fields include professional units such as denier (D), tex, as well as dedicated fields like batch number, delivery date, and production capacity utilization rate.
Constraints on knowledge base retrieval and recall from these characteristics
The multi-source, scattered nature of chemical fiber investment research data requires retrieval systems to support merging and deduplication across multiple data sources. The diversity of professional units and fields requires retrieval systems to support unit normalization and field mapping, to prevent retrieval omissions caused by mismatched units or field names. Data sources with different update frequencies need matching incremental synchronization cycle configurations, to ensure the latest data is indexed promptly. The mixed structure of long research report documents and short ledger records requires segment configuration that balances semantic integrity and retrieval granularity. This avoids semantic fragmentation after splitting, or redundant recall caused by overly fine granularity.
How to Set Configurations
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
chunkSize | 800–1200 characters | Adapts to the paragraph length of chemical fiber research reports and the length of single records in structured ledgers, avoiding semantic fragmentation after splitting |
similarityThreshold | 0.72–0.78 | Matches the semantic precision of chemical fiber professional terms, balancing recall coverage and accuracy |
maxRetrievalCount | Top 10 entries | Covers the multi-dimensional data required for chemical fiber investment research (raw material prices, production capacity, inventory), avoiding missing key information |
incrementalSyncInterval | Every 6 hours | Adapts to data sources with different update frequencies, balancing synchronization real-time performance and server load |
rerankTopN | Top 5 entries | Filters the most relevant chemical fiber professional data, reducing invalid recall that interferes with investment research judgments |
fieldUnitNormalization | Enabled | Unifies retrieval matching rules for professional units such as denier and tex, avoiding retrieval failures caused by inconsistent units |
The parameter values provided on this page are common recommended starting points for determining configurations. Actual values are affected by material form, data volume and business rules. Specific issues require specific analysis, and it is recommended to test on your own samples before finalizing settings.
Three Common Configuration Mistakes
- Phenomenon: When retrieving chemical fiber investment research questions not covered by the knowledge base, references to irrelevant files are still returned. Cause: The
similarityThresholdthreshold is not configured correctly, or the recall logic does not filter low-similarity results. - Phenomenon: After uploading a structured table dataset for the chemical fiber industry, some structured field data is not indexed, resulting in failure to match corresponding content during retrieval. Cause: The
fieldUnitNormalizationconfiguration is not enabled, or professional fields and units are not mapped, leading to field mismatches being filtered out. - Phenomenon: When initiating a chemical fiber investment research retrieval request, the system returns a timeout error or empty results. Cause: A reasonable
incrementalSyncIntervalis not set, resulting in excessive load during multi-source data merging, orparseFileTimeoutSecondsis set too short to handle long document parsing.
How to Verify Correct Configuration
- Upload a chemical fiber structured test table containing professional units such as 150D, 30tex, perform a retrieval test, and confirm that the matching results include the corresponding field content.
- Trigger an incremental synchronization task, check the synchronization log, and confirm that data sources with different update frequencies have been correctly pulled.
- Initiate retrieval for chemical fiber investment research questions not covered by the knowledge base, and confirm that the system does not return references to irrelevant knowledge base files.
- After configuring the tool workflow, initiate a test request that requires both knowledge base data and real-time calculation, and confirm that the system calls both the knowledge base and the tool link.
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.