Document Parsing and Chunking for Minor Metal Research Report Retrieval

Data sources for minor metal research reports include industry monthly reports released by the Minor Metal Branch of China Nonferrous Metals Industry

What This Type of Data Looks Like

Data sources for minor metal research reports include industry monthly reports released by the Minor Metal Branch of China Nonferrous Metals Industry Association, in-depth research reports from securities firm nonferrous metals research teams, weekly market updates from spot traders, and delivery warehouse receipt reports from futures exchanges. Update schedules follow multiple tiers: Weekly spot reports update partial real-time market data daily; monthly industry reports release fixed-cycle supply and demand data each month; in-depth research reports are published on demand.

Typical document structure includes a cover page, table of contents, market overview tables, supply and demand balance modules, upstream and downstream industry chain analysis, policy interpretation and future market outlook. Market and supply and demand modules are mostly structured tables containing quotation, inventory, production volume and other data for different minor metal specifications, with units mostly yuan/ton and ton.

Constraints for Document Parsing and Chunking

Minor metal research reports have a high proportion of structured tables with uniform units. However, table column order and field naming vary across different reports. This requires the parsing link to support flexible adaptation to different table structures.

Weekly updated documents have short length but high publication frequency. This requires balancing parsing efficiency and content completeness.

Supply and demand balance tables in in-depth research reports often span multiple pages. The chunking link must support cross-page table stitching to avoid splitting that breaks data integrity.

Some documents include embedded elements such as industry chain flowcharts and spot delivery scenario images. The parsing link must support image extraction to assist subsequent retrieval and question answering.

Configuration Settings

Configuration ItemRecommended SettingRationale
PARSE_TABLE_ENABLEEnabledMinor metal research reports contain a large number of structured market and supply and demand tables. Enabling this option allows complete extraction of structured data within tables
CHUNK_SIZE800–1000 charactersSingle-page content of structured tables in minor metal research reports is approximately 600-900 characters. This setting avoids splitting table data while adapting to general context windows
PARSE_CROSS_PAGE_TABLEEnabledSupply and demand balance tables in in-depth research reports often span multiple pages. Enabling this option allows complete stitching of cross-page table content and avoids data breaks
UPLOAD_FILE_MAX_SIZE500 MBSingle in-depth research report documents typically do not exceed 200 MB. This setting reserves redundant space to adapt to batch upload scenarios
PARSE_FILE_TIMEOUT_SECONDS300 secondsParsing large research report documents requires longer processing time. This setting avoids interrupting the parsing process due to timeout
PARSE_IMAGE_ENABLEEnabledSome research reports include images such as industry chain flowcharts and spot delivery scenario images. Extracting these images can assist subsequent retrieval and question answering

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 specific analysis. It is recommended to test on your own samples before finalizing settings.

Three Common Configuration Errors

  • Scenario: After a docx or excel format minor metal research report is uploaded, the knowledge base returns content with missing table data. Cause: The PARSE_TABLE_ENABLE configuration option is not enabled, resulting in structured tables not being parsed and extracted.
  • Scenario: After a pdf format minor metal research report is uploaded, embedded industry chain flowchart images cannot be viewed in the interface. Cause: The PARSE_IMAGE_ENABLE configuration option is disabled, or the parsing tool is not configured with an image extraction module.
  • Scenario: After batch uploading minor metal research reports, some chunked content is incorrectly split, resulting in broken data in the supply and demand balance table. Cause: The CHUNK_SIZE setting is too small, and the PARSE_CROSS_PAGE_TABLE configuration option is not enabled, causing cross-page tables to be forcibly split.

How to Verify Correct Configuration

  • Submit a minor metal research report containing structured supply and demand tables and embedded images. Review content on the knowledge base’s parsing preview page to confirm table data is complete and images load properly.
  • Access the FastGPT knowledge base configuration interface, verify current values of parsing-related configuration items such as PARSE_TABLE_ENABLE and PARSE_CROSS_PAGE_TABLE, and confirm alignment with preset configurations.
  • Submit a long-format minor metal research report. Wait for parsing to complete, then review task logs to confirm no timeout errors or parsing failure status codes appear.
  • Search for specific market quotation keywords within minor metal research reports. Check if returned chunked content completely retains associated upstream and downstream data without content fragmentation.

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.