What the data for this category looks like
The data sources for consumer building materials include manufacturer factory inspection reports, industry association sampling inspection announcements, housing and urban-rural development department filing information, and e-commerce platform product parameter pages. Data update cycles vary: factory reports are updated in real time with production batches, association sampling data is released quarterly, and filing information is adjusted synchronously with corporate compliance status. Document structures are primarily structured tables, containing fields such as batch number, specification model, physical performance parameters, implementation standard number, production date, and supplier entity. Physical performance parameters mostly use engineering professional units.
What constraints these characteristics impose on the citation sources and traceability link
Multi-source and heterogeneous data sources require unified matching of source identification rules across different channels during traceability, to avoid chaotic traceability information. Coexisting dynamically updated batch data and static filing data require the traceability link to support associating context with timestamps, to distinguish source content with different timeliness. Structured professional parameter fields require precise matching of field names during the recall phase, rather than using generalized semantic matching, to prevent recalling irrelevant building material data from other categories. Combined descriptions with multiple fields require retaining parameter association relationships during segment processing, to avoid losing traceability basis after splitting.
How to configure the settings
| Configuration Item | Recommended Range | Rationale |
|---|---|---|
similarityThreshold | 0.65–0.75 | Consumer building materials due diligence reports require matching professional parameters such as compressive strength and specification models. A threshold that is too low will introduce irrelevant building material category data, while a threshold that is too high will fail to recall qualified matching items |
recallTopK | Top 8–12 results | A single consumer building materials inspection report contains multiple sets of parameters. Too many recall results will exceed context limits, while too few will miss key batch traceability information |
chunkSize | 800–1200 characters | Consumer building materials inspection reports contain continuous performance parameters and batch descriptions. Segments that are too long will lose field associations, while segments that are too short will damage parameter integrity |
maxContextToken | 8000–12000 | Due diligence reports need to reference multiple traceability documents, so sufficient context must be reserved to accommodate parameter content and source identifiers, to avoid truncation of key information |
enableDuplicateRemoval | Enabled | The same batch of building materials may be filed by multiple channels. Duplicate removal can avoid redundant content that repeatedly references the same source |
rerankTopK | Top 4–6 results | The semantic similarity of professional parameters is easily affected by differences in expression. Reranking can filter recall results that do not belong to the target category |
The parameter values provided on this page are common starting points for configuration. Actual values are affected by material forms, data volume, and business rules. Specific issues require case-by-case analysis, and it is recommended to test on your own samples before finalizing settings.
Three common misconfigurations
- A
500 Internal Server Erroror "training task timed out" status appears, and some files show training exceptions. Cause: Consumer building materials reports mostly contain long sections of professional parameters. When the single file size is close to the 5kb limit, segment processing during parsing triggers timeout restrictions. - The number of citation results is far lower than expected, and the context is truncated early. Cause:
maxContextTokenis set beyond the window range supported by the large model, and the system automatically truncates preceding source traceability information. - Recall results include content from non-target consumer building material categories, and reports for specified parameters cannot be accurately matched. Cause:
similarityThresholdis set to a too low value, and fuzzy matching introduces documents from irrelevant building material categories.
How to verify that the configuration is correct
- Upload a single typical consumer building materials inspection report, check the segmented content parsed by the knowledge base, and confirm that the segment length meets the configuration requirements
- Initiate a query for specified building material parameters, check the source list of recall results, and confirm that the number of recall results and reranked results match the configuration
- Upload multiple building material documents from the same batch and same category, check the duplicate removal effect of citation sources, and confirm that the duplicate removal switch is enabled correctly
- Check the citation annotations in the large model's reply, confirm that the source identifiers match the metadata of the uploaded documents, with no missing or incorrect information
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.