What This Category of Data Looks Like
Data sources for chemical raw material research reports include public industry statistical datasets, securities firm chemical industry research reports, and public market price data from bulk commodity spot markets. There are three update schedules: spot market data updates daily, regular category analysis reports update weekly, monthly, or quarterly, and temporary special reports are generated when sudden policy or market changes occur. Document structure includes three core sections: core data, market analysis, and policy interpretation. Fields covered include product name, spot price, production capacity, output data, total import and export volume, and more. Spot price units are yuan per ton. Units for capacity, output, and import/export volume are ten thousand tons per year or ten thousand tons. Some documents also include associated data for upstream and downstream related categories.
Constraints for Vector Models and Indexing
The data contains two types of content: structured numerical values and unstructured analytical text. Vector models must support encoding both types of content. This avoids losing semantic connections of numerical dimensions in single-text embeddings. The number of basic chemical raw material categories is large, and the volume of research report data per category is concentrated. Indexes must be sharded by category to reduce noise interference from cross-category recall. Spot market data updates daily, regular research reports update weekly. Indexes must support incremental update mechanisms. This avoids index delays caused by full reconstruction. Numerical fields have clear units. Unit information must be retained during preprocessing. This prevents similar vector encodings for similar numerical values with different units.
Configuration Recommendations
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
chunk_size | 800–1200 characters | Core data and analysis paragraphs of chemical raw material research reports mostly fall within this range. This avoids breaking the semantic connections of key data such as product prices and production capacity. |
recall_top_k | Top 10 results | Valid recall results for single-category chemical raw material research reports fall within 10 entries. Excessive recall introduces noise interference from cross-category results. |
incremental_index_enable | Enabled | Chemical raw material research reports include daily-updated spot market data and weekly-updated regular reports. Incremental updates reduce the overhead and delay of full index reconstruction. |
index_shard_num | 1.1–1.3 times the number of categories | Adapts to the index sharding requirements of multiple chemical raw material categories. Balances single-shard data volume and query response performance. |
similarity_threshold | 0.72–0.78 | Filters low-correlation cross-category recall results. Retains valid semantic matches for same-category research reports. |
embedding_batch_size | 32 entries | Adapts to the document size of single chemical raw material research reports. Prevents memory overflow or timeouts during batch processing. |
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 individual analysis. It is recommended to test on your own samples before finalizing settings.
Three Common Configuration Mistakes
- Symptom: After uploading chemical raw material research reports, no corresponding index entries appear in the vector database. Background logs show an
embedding failederror. Cause: The incremental index switch is not enabled, or thechunk_sizesetting exceeds the maximum length supported by the model, leading to embedding task failure. - Symptom: The model management interface displays an
m3e no available channelserror, and embedding service calls fail. Cause: The deployment node and access key for m3e are not configured according to official documentation, or the channel port is not opened to an accessible range. - Symptom: When repeatedly querying the same chemical raw material research report question, a vector database query is triggered each time, with no cache hits. Cause: The query cache function is not enabled, or the cache expiration time does not match the business update schedule.
How to Confirm Proper Configuration
- Upload a single-category chemical raw material research report. Check the background index task logs to confirm there are no
embedding failedorindex build failederrors. - Submit a retrieval request for this category. Check that the retrieval results only include content from same-category research reports, with no cross-category interference.
- Submit the same retrieval request twice. Confirm that the response time of the second request is significantly shorter than the first, or check the cache monitoring panel to confirm an increase in cache hit count.
- Check the vector database shard monitoring panel. Confirm that the number of index shards falls within the configured range, and that single-shard data volume has no obvious imbalance.
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.