What the data for this category looks like
Vehicle research report data primarily comes from broker industry reports, official automaker announcements, and monthly statistical documents from industry associations. There are three update frequency categories: broker reports are released irregularly alongside industry developments, automaker quarterly financial reports are updated on a fixed quarterly schedule, and industry statistical data is updated monthly. Supported document formats include PDF, Word, and Excel. Typical document structures include a table of contents, overall industry sales analysis, vehicle-specific parameter comparison tables, supply chain cost breakdowns, future sales forecasts, and other modules. Core fields include vehicle curb weight, cruising range, official suggested retail price, and monthly sales volume, with units of kilograms, kilometers, ten thousand yuan, and vehicles respectively.
Constraints for Document Parsing and Chunking
Mixed-format data sources require the parsing workflow to support both text extraction and image OCR, to avoid missing sales and parameter data in charts. Batch upload requirements for varying update cycles demand configurations that support large file parsing and timeout fault tolerance. Documents contain a large number of structured tables and professional parameters with units. Chunking must not damage table integrity or break parameter-unit associations, otherwise complete business queries cannot be matched during retrieval. Some research reports include cross-page continuous analysis content; chunking should preserve the contextual coherence of individual analysis segments as much as possible.
How to Set Configurations
| Configuration Item | Recommended Setting | Rationale |
|---|---|---|
PARSE_OCR_ENABLE | Enabled | Vehicle research reports often contain visual content such as sales bar charts and vehicle parameter comparison charts. Enabling this setting allows retrieval of text and numerical data within images |
PARSE_TABLE_MODE | Retain complete table structure | Vehicle-specific sales and cost tables in research reports have tightly linked fields. Splitting tables will lose cross-column and cross-row contextual associations |
SEGMENT_MAX_LENGTH | 800–1200 characters | Single segments of professional analysis or parameter sets in vehicle research reports are moderate in length. This range covers complete business logic and data associations |
SEGMENT_UNIT | Character | Professional terminology and units in vehicle research reports are tightly bound. Chunking by character prevents splitting phrases like "cruising range 500km" into separate text blocks |
UPLOAD_FILE_MAX_SIZE | 200 MB | A single vehicle research report collection may include data from multiple quarters and vehicle models. Raising the upper limit prevents file truncation during batch uploads |
PARSE_FILE_TIMEOUT_SECONDS | 600 seconds | Complex OCR parsing and multi-table processing take significant time. This duration covers the parsing process for most large files |
The parameter values provided on this page are common recommended starting points for configuring settings. 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
- Symptom: After uploading a vehicle research report PDF, sales data in images is not retrieved. Cause: The
PARSE_OCR_ENABLEconfiguration is not enabled, and only plain text content is parsed. - Symptom: After uploading an Excel file with vehicle sales tables, retrieval fails to link vehicle models to corresponding sales values. Cause:
PARSE_TABLE_MODEis not set to retain complete table structure, and tables are split into scattered single-line text blocks. - Symptom: Chunking results separate "cruising range" and "500km", preventing complete query matching during retrieval. Cause:
SEGMENT_UNITis set to token, andSEGMENT_MAX_LENGTHis set too small, causing complete parameter phrases with units to be split.
How to Confirm Configurations Are Correctly Set
- Upload a single vehicle research report PDF that includes a sales chart, then check the parsed data list to confirm text and numerical values from the chart have been extracted.
- Upload an Excel file containing a vehicle-specific sales table, then enter a specific vehicle model name during retrieval to confirm results blocks containing complete table data are returned.
- View the chunking preview interface to confirm vehicle parameters with units are not split into separate text blocks.
- Upload a research report collection file larger than 100 MB, then confirm no timeout or failure prompts appear during upload and parsing.
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.