What the Data for This Category Looks Like
Data sources include public reports from transportation industry associations, quarterly research reports from listed logistics enterprises, and dynamic operation documents for cross-border logistics dedicated lines. Update cycles fall into two categories: industry trend reports are updated monthly or quarterly, while dedicated line operation data is updated daily. Document structures usually include core metrics, regional distribution, and policy interpretation sections. Some documents contain nested detailed tables. Core fields are mostly quantitative data with dedicated units, such as TEU, ton-kilometers. Some documents include segmented metrics like regional freight volume and warehouse capacity utilization rate.
What Constraints Do These Characteristics Impose on Workflow Orchestration?
The nested table structure of logistics research reports requires a table parsing node to be configured in the workflow. A reasonable parsing depth must be specified, otherwise detailed field data will be lost. The difference in update cycles across data sources requires multiple trigger nodes to be configured in the workflow. Scheduling rules for full and incremental refreshes must be distinguished to avoid repeated pulling or delayed updates. The dedicated quantitative unit fields require a unit verification link to be added to the workflow. This prevents logical errors caused by cross-unit calculations. The scattered data sources require a routing node to be configured in the workflow. This splits research reports by type into different processing branches.
Configuration Settings
| Config Item | Recommended Value | Basis for This Setting |
|---|---|---|
PARSE_TABLE_MAX_DEPTH | 2 levels | Nested tables in logistics research reports mostly have 2 levels (first-level classification + second-level details). Exceeding this depth increases parsing time and error rate |
RECALL_CHUNK_SIZE | 800–1200 characters | Quantitative analysis paragraphs in logistics research reports are mostly around 800 characters. Excessive length introduces irrelevant content, while insufficient length loses metric association information |
DATA_SOURCE_REFRESH_INTERVAL | Full refresh at 00:00 daily, incremental refresh hourly | Covers the quarterly update cycle of industry research reports and the daily update requirement for dedicated line data, balancing storage and real-time performance |
VECTOR_SIMILARITY_THRESHOLD | 0.75–0.85 | Logistics research reports contain many professional terms. A threshold that is too low recalls irrelevant industry reports, while a threshold that is too high misses relevant matching content |
PARSE_FILE_TIMEOUT_SECONDS | 600 seconds | Large logistics research report files have large volume and long table parsing time. The default timeout duration is insufficient for complete parsing |
MAX_RECALL_DOCS | Top 8 entries | The number of relevant results for logistics research reports should not be excessive. This avoids LLM processing overload while ensuring result coverage |
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 individual analysis. It is recommended to test on your own samples before finalizing settings.
Three Common Misconfigurations
- Symptom: Workflow API call returns
400 Bad Requestwith the promptmissing required param: kbIds. Cause: The target knowledge base ID is not specified in the知识库变量引用configuration item, or the passed variable parameter format does not meet requirements. - Symptom: The number of research report results returned after workflow execution does not match the configured
MAX_RECALL_DOCSvalue. Extra or missing recall results appear. Cause: The matching relationship betweenVECTOR_SIMILARITY_THRESHOLDand the number of recalled documents is not adjusted synchronously. A threshold that is too high filters out eligible results, while a threshold that is too low introduces irrelevant content. - Symptom: Missing fields appear in parsed research report content, such as TEU units not being correctly extracted. Cause: The
PARSE_TABLE_MAX_DEPTHparameter is not configured, leading to incomplete parsing of detailed fields in nested tables.
How to Confirm Proper Configuration
- Manually upload a local logistics research report file, execute a test in the workflow test panel, and verify if the parsed text contains complete nested table content.
- Call the workflow API, pass the specified knowledge base ID and query keywords, and verify if the returned results contain matching logistics research report fragments.
- Configure a scheduled refresh task, review the data source update log, and confirm that the trigger times for full and incremental refreshes meet expectations.
- Adjust the
VECTOR_SIMILARITY_THRESHOLDparameter, compare recall results across different thresholds, and verify that matching accuracy meets business requirements.
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.