What the data for this category looks like
Black home appliance research report sources include securities firm research institutes, professional home appliance industry monitoring institutions, and industry analysis documents publicly disclosed by brands. These reports primarily serve financial investment and industry analysis needs. Update cadences include regular monthly industry monitoring reports, quarterly industry trend analysis, and special research reports released after new product launches or industry policy announcements. Document structures include report title, publishing entity, publishing time, core category monitoring data, channel performance, competitive landscape analysis, future outlook, and other modules. Fields include sku model, shipment volume, online retail sales, average price, and others. Units are 10,000 units, 100 million yuan, and yuan per unit respectively.
What constraints these characteristics impose on HTTP interfaces and external systems
The update frequency of black home appliance research reports includes both regular cycles and sudden updates. Interfaces must support incremental synchronization triggered by update time to avoid wasting bandwidth resources from full data pulls. Document lengths vary widely, from thousands of characters to over 100,000 characters. Interface parsing timeout configurations must cover long document processing requirements. Research reports contain a large number of professional terms and specific field formats. Interface parameter verification must adapt to the type and unit rules of fields such as sku model and shipment volume. External systems need to support filtering retrieval results by category. Interfaces must provide category filtering parameters to limit the retrieval scope.
How to set configurations
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
UPLOAD_FILE_MAX_SIZE | 200 MB | The maximum size of a black home appliance research report after text conversion is approximately 150,000 characters, which corresponds to a PDF file size range of 150-200 MB |
PARSE_FILE_TIMEOUT_SECONDS | 600 seconds | Long document parsing requires significant processing time to avoid interrupting the parsing process due to timeout |
Segment Length | 800–1200 characters | Black home appliance research reports contain a large number of professional terms. Excessively long segments reduce semantic matching accuracy, while excessively short segments damage context coherence |
Recall Count | 10–20 entries | Black home appliance research reports have multiple data dimensions. Too many recall entries increase interface response time, while too few fail to cover core analysis content |
Similarity Threshold | 0.75–0.85 | Research reports have a high proportion of professional terms, requiring a high matching accuracy to filter irrelevant retrieval results |
Reranked Return Count | Top 5 entries | External systems only need to display the most relevant core research report content. Retaining the top results after reranking improves retrieval efficiency |
The parameter values provided on this page are all conventional recommendations used as a starting point 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 values.
Three common mistakes
- Calling the
/api/kb/doc/insertinterface returns400 Bad Request, with an empty value for thedataIdfield. This occurs when the unique identifierdataIdof the target knowledge base is not correctly obtained, and this required parameter is not included in the request body. - Calling the retrieval interface returns results mixed with research report content not related to the black home appliance category. This occurs when category filtering parameters are not configured in the interface request, and the retrieval scope is not limited to black home appliance-related research reports.
- Retrieval results are empty after uploading a long research report document, or the interface returns
504 Gateway Timeout. This occurs whenPARSE_FILE_TIMEOUT_SECONDSis set too short, causing long document parsing to be interrupted before completion.
How to confirm configurations are set correctly
- Call the
/api/kb/listinterface, check if the target black home appliance research report knowledge base is included in the returned knowledge base list, and confirm that thedataIdparameter is configured correctly. - Upload a test black home appliance research report, call the
/api/kb/doc/searchinterface with a custom search term, check if the returned results include this document, and confirm that the retrieval configuration meets expectations. - View interface logs, confirm that the parsing time of the uploaded research report does not exceed the duration set by
PARSE_FILE_TIMEOUT_SECONDS, and confirm that the timeout configuration is reasonable. - Call the
/api/kb/doc/insertinterface with standard test data, check that the returned status code is200 OK, and confirm that the document import process is working normally.
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.