What this category of data looks like
Data for port and shipping policy and regulatory basis Q&A comes primarily from public normative documents issued by the Ministry of Transport Water Transport Bureau, supervision rules from direct maritime administration bureaus, International Maritime Organization conventions, and internal compliance documents from port groups. Updates are synced to the knowledge base within 72 hours after a new policy is issued. Document structures include fields such as policy number, issuing authority, effective date, applicable port scope, and supervision clauses. Some long documents are full management measures, while short documents are single notices. There is no uniform fixed length.
What constraints do these characteristics impose on the knowledge base retrieval and recall link
Policy documents have strict timeliness requirements. Recall results must match currently effective versions. The effective date field is used to filter expired content. Supervision rules for different ports have regional differences. The recall scope must be limited by port jurisdiction. Long policy texts have strong clause relevance. Clause integrity must be retained during splitting. Semantic logic must not be broken by incorrect splitting. Frequently updated policies require the knowledge base to support incremental synchronization. This avoids recalling outdated invalid content. Policy texts have high formal rigor. Recalled content must strictly correspond to the original text. No semantic deviation is allowed.
How to set up the configuration
Reference only; verify against the target FastGPT release and deployment documentation.
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
similarity | 0.75–0.85 | Port policy texts have high rigor. Ensure recalled content highly matches the question's semantics, and avoid mixing in irrelevant policies |
limit | Top 6 entries | There are many port policy entries. Too many results will exceed the context carrying length. Too few results will fail to cover all supervision scenarios |
searchMode | vector | Policy texts contain a large number of professional terms and structured clauses. Vector retrieval can accurately match keywords and semantic associations |
usingReRank | Enabled | Sort recall results by relevance. Ensure highly relevant policy clauses are returned first, and improve retrieval accuracy |
datasetSearchUsingExtensionQuery | Disabled | Policy Q&A requires strict matching with the original text. Expanding question semantics will deviate from the preset knowledge base content |
collectionIds | Specify the exclusive dataset ID for port and shipping policies | Isolate other category knowledge bases. Only recall content related to port and shipping policies, and avoid cross-category interference |
Three common mistakes
- Phenomenon: Retrieval results include irrelevant content unrelated to port and shipping policies. Cause:
collectionIdsis not configured to limit the exclusive dataset, resulting in recall of content from other category knowledge bases. - Phenomenon: Returned content does not strictly match the original text in the knowledge base, with semantic expansion or rewriting. Cause:
datasetSearchUsingExtensionQueryis enabled, which automatically expands the question's semantics and deviates from the preset Q&A pairs or policy original text. - Phenomenon: An error indicating rate limit exceeded is prompted during vectorization. Logs show interface current limiting is triggered. Cause: The batch submission document batch size is not adjusted. Single submission quantity is too large, causing the embedding interface to trigger current limiting.
How to confirm the configuration is complete
- View retrieval logs. Confirm all recall results come from the exclusive port and shipping policy knowledge base. No cross-category content is mixed in.
- Submit preset policy original text questions. Check that returned content is completely consistent with the original text in the knowledge base. No semantic expansion or rewriting occurs.
- Submit policy questions for different port jurisdictions. Confirm only policy clauses corresponding to the target region are recalled. No cross-region content is returned.
- Test batch vectorization submissions. Confirm no rate limit exceeded errors occur. The submission batch meets the interface current limiting requirements.
The configuration values listed above are common starting points, and should be evaluated against the reader's own samples.
Question material comes from public community discussions. Configuration values are common starting points and should be measured against your own samples. Verified on 2026-09-28.