What the Data for This Category Looks Like
Duty-free research report data comes primarily from brokerage research institute industry reports, public operational disclosures from duty-free operators, and official documents on offshore duty-free policies. Updates do not follow a fixed schedule. Concentrated updates occur during policy adjustments, holiday passenger flow peaks, and quarterly operational data releases. Documents typically include four core sections: policy interpretations, store operational data, passenger flow and sales statistics, and category proportion analysis. Fields include research report publishing institution, publication date, policy effective date, offshore duty-free shopping passenger volume, duty-free commodity sales revenue, and others. Some documents include charts and attachments of original policy texts.
Constraints for Knowledge Base Retrieval and Recall
Data sources are scattered, covering brokerage reports, public disclosure documents, and policy texts. Multi-source data access rules must be configured to ensure unified parsing of documents in different formats. Updates have no fixed schedule, with frequent emergency update scenarios. Keyword-triggered incremental updates must be supported to adapt to emergency update needs. Documents contain a large number of specialized numerical fields and policy terminology. Retrieval must balance semantic matching and exact matching of numerical fields to avoid missing key data associations. Individual documents have a wide content span. When segmenting documents, balance must be struck between context completeness and retrieval accuracy.
Configuration Settings
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
recall count | Top 8-12 results | Duty-free research reports cover multiple dimensions including policies, passenger flow, and sales in a single document. Too many recalled results will introduce irrelevant information, while too few will fail to cover complete analytical dimensions |
similarity threshold | 0.72-0.85 | There are a large number of specialized terms in the duty-free field. A threshold that is too low will introduce irrelevant recalls, while a threshold that is too high may miss valid content related to policies |
PARSE_FILE_TIMEOUT_SECONDS | 120 seconds | A single duty-free research report may contain multiple operational data charts, and the parsing process requires additional time to process tables and image OCR content |
segment length | 1000-1200 characters | The analytical and data paragraphs in duty-free research reports are of moderate length. Too long segments will destroy contextual semantic connections, while too short segments will separate data and conclusion bindings |
incremental update trigger rule | Match based on file modification time + keywords "duty-free", "offshore", "policy" | Updates to duty-free research reports are mostly accompanied by policy changes or operational data releases. Keyword matching can accurately trigger incremental synchronization and avoid invalid updates |
reranked return count | Top 3-5 results | When users search for research reports, they prioritize core conclusions and key data. Retaining the most relevant results after reranking can improve retrieval efficiency |
The parameter values provided on this page are general recommendations that serve as a starting point for configuration. Actual values are affected by material format, data volume, and business rules. Specific issues require individual analysis, and it is recommended to test on your own samples before finalizing settings.
Three Common Misconfigurations
- Issue: After importing research report data returned by external interfaces into the knowledge base, the corresponding reference content is not displayed during retrieval. Cause: The data was not converted to the structured format required by the platform, and required fields such as
title,content, andpublish_datewere missing. - Issue: No matching results are returned for the first research report retrieval, but the same query executed a second time returns correct content. Cause: The first retrieval triggers cold start loading of knowledge base shards, and some incrementally updated documents have not completed in-memory caching. The cache takes effect during the second query.
- Issue: After configuring multi-knowledge base sequential retrieval logic, the first knowledge base is not prioritized as expected. Cause: The
knowledge base retrieval priorityparameter was not configured correctly, resulting in a retrieval order that does not match the preset.
How to Verify Proper Configuration
- Upload a single duty-free research report containing policy interpretations and sales data, check that the segmented content of the parsed document has no obvious semantic disconnections, and that the segment length matches the preset range.
- Initiate a query containing specialized terms such as "offshore duty-free allowance" and "Sanya store passenger flow", verify the similarity scores of the recalled results, and adjust the threshold to meet business requirements.
- After configuring the incremental update trigger rule, modify a research report file with the keyword "policy", check that the knowledge base synchronization log shows successful incremental update.
- Call a workflow that dynamically switches knowledge bases using global variables, verify that the
knowledge base IDparameter of the retrieval node is correctly bound to the global variable, and no hard-coded fixed IDs are used.
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.