What the Data for This Category Looks Like
The data sources for metal material processing mainly include internal enterprise material inspection reports, production process specifications, equipment operation and maintenance logs, industry-standard general metal material documentation, and operational experience documents accumulated by frontline employees. Data updates are triggered irregularly with new material development and process iterations. Equipment operation and maintenance data is synchronized monthly. Most document structures are structured parameter tables, step-by-step operation instructions, and long-text inspection records. Fields include material grades, process temperature ranges, equipment operating hours, and inspection batch identifiers. Common units are degrees Celsius, megapascals, and hours.
Constraints on Knowledge Base Retrieval and Recall
The coexistence of structured parameter tables and long-text inspection records in document structures requires retrieval systems to support both keyword matching of field parameters and contextual semantic recall. Irregularly updated data needs incremental indexing logic to avoid resource consumption from full reconstruction. Multi-unit fields such as degrees Celsius and megapascals require unified unit mapping during retrieval to prevent recall failure due to unit mismatches. Most frontline operational experience documents use colloquial language, so the fuzzy matching capability of semantic recall must be optimized to cover approximate descriptions of process parameters.
Configuration Settings
Reference only; verify against the target FastGPT release and deployment documentation.
| Configuration Item | Recommended Setting | Rationale |
|---|---|---|
similarity | 0.65–0.75 | Meets the precision requirements for parameter matching in metal material processing documents, and avoids recalling irrelevant material parameters or process steps |
limit | Top 8–12 entries | Covers the volume of process and inspection data that employees need to reference in single-round office scenarios, and avoids overly long context |
searchMode | semantic+keyword | Balances structured field matching and semantic recall, and adapts to mixed-structure processing documents |
usingReRank | Enabled | Re-ranks recall results by business relevance, and corrects ranking bias from pure semantic recall |
datasetSearchUsingExtensionQuery | Enabled | Automatically expands search terms for process parameter-related queries, such as associating "quenching temperature" with searches for corresponding process parameters |
collectionIds | Bind corresponding knowledge base collections by business domain | Isolates documents from different production lines and material categories, and avoids cross-domain recall interference |
Three Common Configuration Mistakes
- Phenomenon: Embedded images in material inspection reports in the knowledge base do not appear in retrieval results. Cause: Knowledge base image indexing and parsing configuration is not enabled, so only text content is extracted for retrieval and recall.
- Phenomenon: Knowledge bases remain in the indexing state for a long time after upload, with indexing not completing. Cause:
collectionIdsare not bound by business domain, leading to full loading of large document sets containing multiple equipment operation and maintenance logs, which causes indexing timeouts. - Phenomenon: High-score retrieval results appear at the bottom of the result list. For example, a full-text retrieval score of 1.2717 ranks lower than a result with a score of 0.5208. Cause:
usingReRankis not enabled, so the pure semantic recall ranking logic does not adapt to the weight priority of process parameters in metal material processing documents.
How to Confirm Proper Configuration
- Initiate a retrieval query containing a specific material grade, and verify that the retrieved results include the structured parameters and text content of the corresponding document.
- Review the retrieval log to confirm the actual effective state of configuration items such as
similarityandusingReRank. - Upload a test metal material process document, and confirm that the indexing status does not stay in an incomplete state for an extended period.
- Initiate an extended query containing process parameters, and confirm that the retrieval results cover the associated document content.
The values provided here 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.