What This Type of Data Looks Like
Precious metals financial report data comes primarily from public trading announcements of the Shanghai Gold Exchange and the London Bullion Market Association, annual and quarterly reports of domestic and overseas precious metals listed companies, and supply and demand analysis documents published by industry associations. Data update cycles cover daily trading quotes, weekly inventory reports, quarterly business briefings, and full annual financial reports. Document formats include official PDF announcements, structured reports with dense tables, and mixed text and image content with embedded price trend charts and inventory bar charts. Core fields include precious metal purity identifiers such as AU9999, AG999, position holdings (unit: kilograms/ounces), transaction average prices (unit: yuan/gram, US dollars/ounce). Some documents also include hedging plans and quantitative data on production and sales.
Constraints on Document Parsing and Chunking
Multiple source document format differences require parsing tools to support PDF, web pages, tabular documents and other formats, to avoid failed structured data extraction. Frequently occurring standardized tables and multi-unit fields require the chunking process to retain table row-column structure and unit information, to prevent data confusion after splitting. Embedded charts and specialized terminology paragraphs require chunking to retain contextual connections, to avoid splitting cross-paragraph hedging strategy descriptions and price trend analysis into independent segments. Some public data sources have anti-scraping restrictions, so valid access rules must be configured to ensure parsing success rate.
Configuration Settings
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
chunk_size | 800–1200 characters | Precious metals financial reports often contain long text paragraphs and structured tables. This range can fully retain contextual connections for single-segment business data and table row groups |
chunk_overlap | 100–150 characters | Prevents splitting cross-paragraph specialized terminology such as hedging strategy descriptions, and ensures contextual coherence |
enable_table_parse | Enabled | Precious metals financial reports frequently contain structured tables for positions, prices, and production volumes. Enabling this setting retains table row-column structure and avoids text disorder |
parse_image_alt | Force extraction | Some documents contain embedded price trend charts and inventory bar charts. Extracting alt text can supplement chart information required by large models |
PARSE_FILE_TIMEOUT_SECONDS | 120 seconds | Large annual report PDFs may contain multiple pages of charts and tables. This duration ensures complete parsing |
allowed_url_schemes | http, https, file | Adapts to web data sources, and only allows access to links using valid protocols |
The parameter values provided on this page are common starting points for configuration. Actual values are affected by material format, 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
- Issue: Importing a publicly shared web link into a knowledge base results in a parsing failure, returning a
403 Forbiddenstatus code. Cause: Allowed data source domains are not configured, and the domain of the public web link is not added to the allowlist. - Issue: Parsed document chunks have disordered table content, with fields and units lost. Cause: Table structured parsing configuration is not enabled, and table content is extracted only as plain text.
- Issue: Embedded images in parsed documents are not associated with context, and large models cannot access chart information. Cause: Image alt text extraction configuration is not enabled, and only text content is extracted without supplementing image metadata.
How to Confirm Proper Configuration
- Upload a test precious metals quarterly financial report PDF, and check whether the parsed table structure is complete, and whether fields and units are accurately retained.
- Import a publicly available precious metals industry report web link, and check whether the parsed result includes the original text and table content without abnormal errors.
- Review chunked text fragments, and confirm that long paragraphs and table row groups are not incorrectly split, with complete contextual connections.
- Check whether alt text for embedded images is synchronously extracted into the parsed result, which can be viewed in the platform preview interface.
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.