What This Category of Data Looks Like
The data for coke financing daily reports primarily originates from the China Coking Industry Association, major commodity trading platforms in core producing areas, and internal daily reports from steel mills. Updates are released daily with the prior trading day’s transaction data, typically before 8 AM local time. Common document formats are multi-page PDFs or Excel files. Core content is stored in structured tables, with fields including production area, coke specification, daily board price, ex-warehouse price, inventory balance, and more. All price units are uniformly set to yuan/ton. Some files also include short market commentary paragraphs.
Constraints Imposed on Document Parsing and Chunking
Coke financing daily reports use structured tables as their core data carrier. The number of table rows fluctuates daily based on the scope of producing areas and steel mills covered. Parsing must accurately locate table regions to avoid extracting header or footer announcement text by mistake. Fields include numerical data with attached units. Parsing must preserve the link between units and their corresponding cells, otherwise data semantics will break after chunking. Some daily report tables span 2 to 3 pages. Parsing workflows must support cross-page table merging to prevent data from being split into unrelated chunks. Daily update timeliness requires parsing workflows to be stable and efficient, avoiding timeouts or parsing failures caused by improper configuration.
Configuration Settings
| Configuration Item | Recommended Setting | Rationale |
|---|---|---|
PARSE_TABLE_ENABLED | true | Core data of coke financing daily reports is stored in structured tables. Enabling this setting preserves cell association and formatting |
PARSE_TABLE_MAX_ROWS_PER_BLOCK | 15-20 rows | A single daily report table typically contains 10 to 18 entries for producing areas or steel mills. This range avoids chunks that are overly long or overly fragmented |
maxContext | 800-1200 characters | Individual coke price data links production area, specification, price, and other related information. This length supports complete semantic integrity |
PARSE_OCR_ENABLED | false (set to true for scanned versions) | Most daily reports are in editable formats, so OCR is not required. Scanned files need OCR enabled to extract text |
PARSE_FILE_TIMEOUT_SECONDS | 60 seconds | Reasonable time threshold for parsing a single multi-page daily report, preventing timeouts caused by network or parsing load |
UPLOAD_FILE_MAX_SIZE | 50 MB | Single coke financing daily report files typically do not exceed 20 MB, with reasonable additional headroom |
The parameter values provided on this page are common starting points for configuration. Actual values are affected by document format, data volume, and business rules. Each use case requires targeted analysis. It is recommended to test using samples relevant to the deployment before finalizing settings.
Three Common Misconfigurations
- Issue: After uploading an Excel or Word format coke financing daily report, core table data is missing from the parsing result. Cause: The
PARSE_TABLE_ENABLEDconfiguration is not enabled, or table recognition trigger rules are not set correctly. - Issue: When searching the uploaded coke daily report in the knowledge base, no matching results are returned and a
400 Bad Requesterror is displayed. Cause: Single chunk data length exceeds themaxContextlimit, or parsing timed out before data could be stored in the knowledge base. - Issue: The background configuration page cannot locate the miner-u related parsing function entry, and an
OCR Erroroccurs when OCR is enabled. Cause: Parsing functions have been integrated into the global configuration in the current version, and the standalone miner-u plugin has been discontinued. OCR is forced to be enabled but no corresponding engine is configured.
How to Verify Proper Configuration
- Upload a single standard coke financing daily report file, review the parsed text preview, and confirm all table data is fully retained with no missing rows or misaligned cells.
- Initiate a knowledge base search test, enter a query term that includes a specific production area and coke specification, and confirm returned results include the corresponding numerical values and units.
- Check the background parsing logs, and confirm there are no
PARSE_TIMEOUT,400 Bad Request, orOCR_ERRORerrors. - Adjust the
maxContextparameter, compare chunking results across different values, and ensure each semantic chunk contains complete single entries or related data groups.
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.