What the data for this category looks like
Financial report data for the plastics and rubber category is primarily sourced from quarterly, semi-annual, and annual reports publicly disclosed by domestic and overseas listed companies, supplemented by monthly industrial operation data released by industry associations. Most documents are in PDF format, and include sections such as consolidated financial statements, main business operation details, and descriptions of production capacity and inventory. Core fields include total natural rubber procurement volume, polyethylene plant operating hours, and styrene-butadiene rubber inventory turnover days. Units are mostly tons, days, and ten thousand yuan. Data update schedules are fixed: quarterly reports are disclosed within 30 days after the quarter ends, annual reports are disclosed within 4 months of the following year, and industry monthly data is updated within 10 days of the next month.
Constraints imposed by these characteristics on knowledge base retrieval and recall
The long document structure and specialized segmented fields of plastics and rubber financial reports require retrieval to prioritize semantic associations between tables and professional terms. This avoids information loss caused by fragmented recall. Fixed disclosure and update schedules allow the knowledge base to use a periodic full synchronization strategy, reducing synchronization pressure. The presence of multi-segment category data requires the retrieval and recall process to support precise filtering by business segment and time dimension, preventing cross-category data confusion. PDF format documents require parsing tools to retain the original table layout, ensuring structured data such as inventory and production capacity can be retrieved normally.
Configuration Settings
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
recall count | top 10-15 | A single plastics and rubber financial report document contains multiple sets of segmented business data. A sufficient number of recalled entries is needed to cover operation information across different segments |
similarity threshold | 0.72-0.78 | This category has a large number of professional terms. A threshold that is too high will miss relevant documents, while a threshold that is too low will introduce irrelevant data. This range is calibrated based on actual testing |
chunk length | 800-1200 characters | Financial reports include long paragraphs of operation analysis and table descriptions. Too long a chunk will lose semantic associations, while too short a chunk will damage the integrity of professional terms |
PARSE_FILE_TIMEOUT_SECONDS | 600 seconds | Single annual financial report PDF files have a large number of pages, resulting in long parsing times. Extending the timeout period prevents parsing failures |
rerank return count | top 5 | Initial recalled entries must be filtered through reranking to retain the most relevant entries for generating analysis reports |
UPLOAD_FILE_MAX_SIZE | 1000 MB | Large annual financial report files have significant size. Raising the upload upper limit ensures complete import |
The parameter values provided on this page are common starting points for configuration setup. 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
- Symptom: The knowledge base list displays as empty in the interface, and API calls return an empty array. Cause: A persistent data volume was not mounted during deployment. Restarting the docker-compose container clears the knowledge base metadata stored within the container.
- Symptom: Generated financial report analysis includes fixed introductory copy at the start. Cause: The system default reply initialization configuration was not disabled, causing preset text to be automatically inserted into every response.
- Symptom: Single retrieval time exceeds expected limits. Cause: The recall count was set too high, and document parsing cache was not enabled. This causes large annual financial report PDF files to be re-parsed for each retrieval.
How to confirm correct configuration
- Upload a single-quarter plastics and rubber financial report PDF, and check if the parsed text retains structured table content such as production capacity and inventory.
- Enter a search term containing category-specific professional terms, and verify that recalled documents are financial report data from the same category, not documents from other industries.
- View knowledge base synchronization logs, and confirm that full synchronization tasks complete within the fixed period, with no timeout errors.
- Call the retrieval API, and check that the number of returned results and the number of reranked entries fall within the configured value ranges.
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.