What This Category’s Data Looks Like
Gas industry research report data mainly comes from monthly supply and demand announcements released by national urban gas industry associations, annual/quarterly financial reports of listed gas enterprises, regional market analysis reports from third-party consulting institutions, and gas policy documents issued by housing and urban-rural development departments. Update cycles fall into three categories: monthly (supply and demand, inventory data), quarterly (overall industry analysis), and annual (full industrial chain reports).
Typical document structures include four core parts: core data tables, price trend analysis, regional market interpretation, and policy impact explanations. Core fields include gas supply volume, residential gas price, industrial gas usage proportion, number of users, and some reports also include detailed content on pipeline network construction progress.
What Constraints Do These Characteristics Impose on Document Parsing and Chunking
Gas industry research reports have a high proportion of structured tables, and data is tightly paired with its corresponding unit. When chunking, avoid splitting core data from its matching unit. The high-frequency updates of multiple versions require the parsing process to accurately extract the report release time, to avoid confusing documents of the same category from different cycles.
Regional market analysis content is scattered across different paragraphs. Fixed-length chunking easily separates regional policies from supporting supply and demand data. Large quarterly research reports often exceed 50 pages, so the segmentation logic for long documents must be adapted to avoid overloading individual chunks.
Configuration Settings
| Configuration Item | Recommended Approach | Rationale |
|---|---|---|
PARSE_TABLE_MODE | Retain complete structured tables | The core data of gas industry research reports are supply and demand, price tables. Splitting them will destroy data associations |
CHUNK_SIZE | 800–1200 characters | Adapt to the single-topic paragraph length of gas industry research reports, avoid separating policy interpretations from supporting data |
PARSE_FILE_TIMEOUT_SECONDS | 300 seconds | Cover parsing time for large research reports with more than 50 pages |
ENABLE_TIMESTAMP_EXTRACT | Enabled | Extract research report release time, used to distinguish documents of the same category from different cycles |
MAX_CHUNK_OVERLAP | 50–80 characters | Ensure contextual coherence between adjacent chunks, adapt to long paragraphs of regional market analysis |
UPLOAD_FILE_MAX_SIZE | 200 MB | Adapt to large research report files for batch uploads, avoid parsing interruptions |
The parameter values provided on this page are common starting points for configuration. Actual values are affected by material form, data volume, and business rules. Specific issues require case-by-case analysis. Testing on local samples prior to final configuration is recommended.
Three Common Mistakes
- Phenomenon: Some gas industry research report PDFs with embedded encrypted fonts fail to parse, returning the
PARSE_FAILEDstatus code. Cause: ThePARSE_FONT_WHITELISTparameter is not adjusted. The parsing engine cannot recognize commercial fonts not included in the system, leading to text extraction failure. - Phenomenon: After local deployment, uploading files via the workflow fails to read the specified path, returning a
FILE_NOT_FOUNDerror. Cause: TheCUSTOM_READ_FILE_URLenvironment variable is not configured inconfig.json. The system cannot map local file paths to accessible addresses. - Phenomenon: Parsed chunks show "gas supply volume" and "ten thousand cubic meters" split apart. Cause:
CHUNK_SIZEis set below 600 characters, which forcibly truncates paragraphs with unit-attached values and destroys data associations.
How to Confirm Proper Configuration
- Upload a single gas industry research report PDF with fewer than 50 pages, and verify that the parsed table preview fully retains row and column structures.
- Randomly select three chunks of content, and confirm that numerical values and their corresponding units in each chunk are not split apart.
- Upload a single research report file with more than 100 pages, and confirm that the parsing task does not trigger a timeout error.
- View the parsing log, and confirm that the release time field of the research report has been extracted.
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.