What Data for This Category Looks Like
Data sources include official product archives from brand owners, compliance test reports from national and industry regulatory authorities, actual test data from third-party testing institutions, and product filing information from e-commerce platforms. Update schedules are adjusted alongside new product launches, compliance standard revisions, and supply chain changes, with no fixed cycle. Document structure primarily consists of structured parameter pages, with unstructured test scan files and certification scan files attached. Each product due diligence-related document includes three core content types: basic product information, energy efficiency parameters, safety certifications, and material traceability information. Fields include product model, rated voltage (unit: volts), rated power (unit: watts), overall external dimensions (unit: millimeters), certification number, launch date, supplier filing identifier, and some documents include unstructured test description text.
Constraints Imposed on Multi-turn Dialogue and Prompt Engineering
The coexistence of structured parameters and unstructured test documents requires multi-turn dialogue to distinguish recall logic for parameter queries and compliance description queries, to avoid mixed output. Data sources with no fixed update cycle require prompts to explicitly prioritize the most recently uploaded relevant documents in the knowledge base, avoiding calls to expired data. The large number of parameter fields with clear units requires multi-turn dialogue outputs to strictly retain units from the original documents, without unauthorized modification or omission. Product model is the core identification field. Multi-turn dialogue must first confirm the specific product model the user is inquiring about when starting, to avoid confusion of cross-model parameters. In addition, unique identifier fields such as certification numbers require complete reference of number content from documents when outputting, without simplification or tampering.
How to Configure Settings
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
chunkSize | 800–1200 characters | Black home appliance due diligence documents contain long test descriptions and parameter lists. This segment length preserves the association between parameters and their corresponding descriptions, avoiding context breaks after splitting |
similarityThreshold | 0.75–0.85 | Black home appliance products have many models and high parameter similarity. A threshold that is too low may retrieve irrelevant model documents, while a threshold that is too high may miss supplementary documents for the same model |
retrievalTopK | Top 8–10 results | A single due diligence document covers multi-dimensional content including product basic information, energy efficiency, and certifications. Retrieving 8-10 results can fully cover core query needs |
rerankTopN | Top 3–5 results | Prioritize displaying core parameters or compliance content that most closely matches user queries, reducing interference from non-critical information |
PARSE_FILE_TIMEOUT_SECONDS | 600 seconds | High-definition test scan files and long PDF documents for some black home appliances take a long time to parse. 600 seconds ensures all uploaded files are fully parsed |
ENABLE_CHUNK_SEPARATOR | Use document-built title hierarchy | Black home appliance due diligence documents have built-in structured headings. Using built-in titles as separators preserves the original document structure and improves retrieval accuracy |
The parameter values provided on this page are all common recommended starting points for configuration. Actual values are affected by material form, data volume, and business rules. Specific issues require specific analysis, and it is recommended to test on your own samples before finalizing.
Three Common Misconfigurations
- Phenomenon: After parsing black home appliance due diligence documents using generic title separators such as #, ##, parameter and corresponding description separation occurs during retrieval. Cause: The title hierarchy of black home appliance due diligence documents does not fully match generic document structures, and some parameter descriptions are nested under secondary headings. Generic separators cannot accurately split valid content blocks.
- Phenomenon: After uploading a due diligence document containing high-definition test scan files, calling the multi-turn dialogue interface returns a 422 status code. Cause: The
UPLOAD_FILE_MAX_SIZEconfiguration item was not adjusted, and the file size of the high-definition scan file exceeds the default limit, resulting in abnormal interface request format. - Phenomenon: After refreshing the multi-turn dialogue window, front-end dialogue records disappear, but complete records can still be viewed in the back-end management interface. Cause:
SESSION_STORAGE_EXPIRE_TIMEwas not configured to match the duration of back-end session storage, and front-end session cache expiration does not synchronize session data from back-end storage.
How to Verify Correct Configuration
- Upload a typical black home appliance due diligence document, manually trigger parsing, check if parsed text blocks retain the association between parameters and their corresponding descriptions, and verify that the
chunkSizeconfiguration matches document length characteristics. - Initiate a multi-turn dialogue targeting parameters of a specific black home appliance model, check if retrieved documents include all core parameters of that model, and verify that
retrievalTopKandsimilarityThresholdconfigurations match query requirements. - Upload a high-definition test scan file, initiate a query regarding compliance certification content, check if the interface returns a 200 status code, and verify that
UPLOAD_FILE_MAX_SIZEandPARSE_FILE_TIMEOUT_SECONDSconfigurations cover file parsing requirements. - Initiate a multi-turn dialogue, then refresh the front-end page, check if dialogue records are fully displayed, and verify that
SESSION_STORAGE_EXPIRE_TIMEconfiguration matches back-end session storage rules.
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.