What the Data for This Category Looks Like
Chemical raw material financing daily report data primarily comes from daily financing summaries released by domestic basic chemical industry associations, listed company financing announcements, and financing filing public notices from local financial regulatory bureaus. Updates follow a daily schedule, publishing public financing transactions from the previous workday. Common document formats are Excel and PDF. Excel files use multi-column tables, with each row corresponding to one financing transaction. Headers may contain merged cells. PDF files have multi-page table summaries, and some documents include short financing background notes alongside tables. Core fields include financing entity name, chemical raw material category, financing amount (unit: ten thousand yuan or hundred million yuan), financing method, disclosure date, and location. Some documents add supplementary fields for the financing party’s industry classification and fund usage.
Constraints on Document Parsing and Chunking
Daily updated batch documents require stable parsing adaptation to avoid redundant overhead from repeated parsing. Excel files have merged headers and a single-row single-financing structure. Auto chunking may mistakenly place merged header rows into a single chunk, or split cross-row content from a single financing transaction. PDF files mix tables and text notes. Auto chunking may mix table rows and side notes, breaking the integrity of financing records. Some documents use inconsistent amount units. If chunking does not retain contextual associations, matching errors between units and corresponding amounts will occur. Financing entity names may contain special symbols such as parentheses and Chinese commas. Chunking must fully retain entity identifiers to avoid losing entity information through incorrect splitting.
Configuration Settings
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
Chunk Length | 800–1200 characters | A single financing record in chemical raw material financing daily reports is approximately 200–300 characters. Chunking preserves contextual association of entities, amounts, and methods to avoid splitting critical information |
Custom Separator | {Disclosure Date} + line break | Adapts to the single-row single-financing structure of Excel documents, resolving issues where auto splitting merges multiple rows into one chunk |
UPLOAD_FILE_MAX_SIZE | 500 MB | Adapts to the total size of multiple daily financing report documents imported in a single batch, avoiding parsing timeouts |
PARSE_EXCEL_MERGED_CELL_MODE | Preserve header hierarchy, split by row | Excel files for chemical raw material financing daily reports have merged headers. This configuration prevents child fields from separating from parent headers |
PARSE_PDF_TABLE_EXTRACT | Extract by table row | Adapts to the mixed table and text structure in PDF financing daily reports, avoiding mixing of table content and side notes |
Similarity Threshold | 0.75–0.85 | Financing daily reports have clear fields. A threshold that is too low will retrieve irrelevant records, while a threshold that is too high will miss matching financing entries |
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 targeted analysis. It is recommended to test on your own samples before finalizing settings.
Three Common Mistakes
- Scenario: After importing financing daily reports via Excel, multiple consecutive financing records are merged into one chunk. Cause: The
Custom Separatorsetting is not configured, and default generic splitting rules are used, which cannot recognize the single-row single-financing record structure. - Scenario: In some financing record chunks, the amount unit does not match the corresponding field, making accurate retrieval of target records impossible. Cause:
PARSE_EXCEL_MERGED_CELL_MODEis not enabled, so unit information from merged headers is not associated with the corresponding amount field. - Scenario: After uploading multiple PDF-format financing daily reports, the parsing result of some documents is empty or incomplete. Cause:
PARSE_FILE_TIMEOUT_SECONDSis not set to a reasonable duration, and large PDF documents experience parsing timeouts leading to data loss.
How to Verify Correct Configuration
- Upload a single Excel-format financing daily report, and confirm that parsed chunks correspond one-to-one with single-row financing records in the original document.
- Upload a single PDF-format financing daily report, and confirm that table content is fully extracted with no mixing of table rows and side note text.
- Import a batch of consecutive daily financing reports, and confirm that chunking results are correctly split by date and financing entity, with no cross-document content mixing.
- Enter the complete field information of a single financing transaction, and confirm that the corresponding chunk is correctly retrieved.
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.