What This Category of Data Looks Like
Data for plastics and rubber financing daily reports is sourced from commodity trading platforms, warehouse receipt registration systems of industry storage associations, and daily submission files from futures delivery warehouses. One daily report is released each workday. Each document covers all financing-related data for all product categories on that day. The core content consists of structured tables, with a small number of text description fields. Fields include product name, warehouse receipt quantity, pledged financing amount, delivery warehouse, financing institution, registration date, and more. Warehouse receipt quantity is measured in tons. Financing amount is measured in ten thousand RMB. Some regional daily reports include a USD-denominated field converted using exchange rates.
Constraints Imposed by These Characteristics on Document Parsing and Chunking
The high proportion of structured tables requires the parsing step to retain table row and column structures. Splitting cell content into independent text blocks will lose business associations, so this practice must be avoided. The multi-field and strongly correlated nature of the data requires chunking to use a single product’s single-day financing data as the minimum unit. Splitting associated fields such as warehouse receipt quantity and financing amount for the same product must be avoided. Cross-page tables are a common format. Parsing must automatically merge same-category data across pages within the same daily report, preventing chunking from truncating complete business information. The high daily update frequency requires chunking logic to adapt to the fixed data structure of single documents, reducing the need for custom adjustments.
Configuration Settings
| Configuration Item | Recommended Setting | Rationale |
|---|---|---|
parse_table_mode | preserve_structure | Plastics and rubber financing daily reports take structured tables as their core. Retaining table structure avoids splitting business fields, ensuring business relevance within chunks |
chunk_size | 800–1000 characters | Single product’s single-day financing data is approximately 300-600 characters. This chunk length can hold complete financing information for 1 to 2 full products, avoiding cross-product splitting |
chunk_overlap | 50–80 characters | Some daily reports include brief introductory text. The overlap length ensures contextual association between descriptive text and subsequent table data, preventing information breaks |
enable_table_cell_merge | true | Some daily reports have merged fields across cells. Enabling this setting fully parses merged business information, preventing field loss |
parse_timeout | 60 seconds | Single plastics and rubber financing daily report has moderate data volume. 60 seconds covers the parsing and chunking process for conventional documents, avoiding timeout errors |
chunk_min_length | 100 characters | Filters out blank cells or short comments with no business meaning, avoiding generation of invalid chunks |
The parameter values provided on this page are conventional recommendations used as a starting point for configuration. Actual values are affected by material form, data volume, and business rules. Specific issues require case-by-case analysis. It is recommended to test on your own samples before finalizing settings.
Three Common Misconfigurations
- Phenomenon: Generated chunk IDs cannot be copied directly through the interface. Cause: Front-end interactions in some versions do not include a copy button for chunk IDs, preventing quick retrieval of chunk identifiers for custom indexing.
- Phenomenon: Custom-split document chunks stored in the knowledge base have duplicate content automatically removed. Cause: The knowledge base enables global content deduplication logic by default, and no whitelist is configured for the structured fields of plastics and rubber financing daily reports. This causes legitimate duplicate data chunks for the same product and date to be mistakenly deleted.
- Phenomenon: Parsed table data is split into scattered text lines, and the original table structure cannot be restored. Cause:
parse_table_modeis not configured to retain structure mode, causing table cell content to be split independently and losing business association relationships.
How to Verify Correct Configuration
- Upload a single standard-format plastics and rubber financing daily report, view the parsed chunk list, and confirm that each chunk contains complete single product single-day financing data, with no cross-product or cross-field splitting.
- Enter the document management page of the knowledge base, verify that the number of chunks for the uploaded document matches the preset chunk logic, with no abnormally missing or redundant chunks.
- Copy the ID of any chunk, confirm that the interface can normally trigger the copy operation, and paste to obtain a complete chunk identifier string.
- View the parsing log, confirm that there are no table parsing failure errors, and merged cell fields are fully parsed with no field loss.
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.