What Data Looks Like for This Category
Typical entities in this category include electroplating plants, electronic connector and hardware surface treatment workshops. Daily documents cover bath solution analysis records, process parameter cards, fixture records, film thickness and adhesion reports, hazardous waste ledgers, and wastewater monitoring records. Data sources include customer surface treatment specifications, bath solution test results, rectifier operation data, online water quality monitoring records, and hazardous waste management ledgers. Update frequency follows per bath cycle, per shift, or fixed monitoring intervals. Documents include structured parameter fields such as bath number, temperature, current density, pH value, and additive concentration, plus unstructured process descriptions and test charts.
Constraints on Knowledge Base Retrieval and Recall
Frequently updated business data requires the retrieval system to support incremental synchronization and expired data filtering. This prevents bid documents from referencing outdated bath solution parameters or hazardous waste emission data. Mixed multi-type document structures require retrieval to adapt to both structured parameter matching and unstructured text or image recall. This covers process requirements, test results, and compliance documents. Decentralized data sources need knowledge base collections categorized by business module. This prevents irrelevant cross-module data from interfering with retrieval results. Strict compliance and quality requirements mean retrieval must prioritize recalling data that meets current project environmental protection, film thickness, and fixture configuration standards. This reduces error risks.
How to Set Configurations
These configurations are based on FastGPT v4.17.0.
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
similarity | 0.75–0.85 | Matches the precision requirement for electroplating process parameters, avoids recalling outdated or irrelevant bath solution data |
limit | Top 8 entries | Balances the multi-dimensional process basis required for bid documents, avoids excessive results causing context overflow |
searchMode | mixedRecall | Adapts to mixed retrieval needs for structured parameters such as current density and free text descriptions such as fixture requirements |
usingReRank | Enabled | Rearranges recall results by business relevance, prioritizes returning data that meets current bid project film thickness and environmental protection requirements |
datasetSearchUsingExtensionQuery | Enabled | Expands retrieval scope to cover associated documents such as customer surface treatment specifications and hazardous waste management records |
collectionIds | Grouped by business module | Separately associates independent knowledge base collections such as bath solution records, process parameter cards, and hazardous waste ledgers, prevents irrelevant cross-module data from interfering with retrieval results |
Three Common Mistakes
- Phenomenon: After uploading a Word document containing images, retrieval cannot return image content or image links. Cause: Multimodal retrieval configuration is not enabled, only text content is embedded and recalled.
- Phenomenon: When creating a knowledge base using a URL, background logs display cannot fetch internal url. Cause: No allowed internal domain whitelist is configured, or the internal resource pointed to by the URL has no open access permissions.
- Phenomenon: PDF document chunk preview indicates inability to read file content. Cause: The document contains encrypted content or scanned images, and OCR recognition configuration is not enabled, resulting in failure to extract text and image information.
How to Confirm Configurations Are Correctly Set
- Uploading a test document containing a process parameter table and images, initiating a retrieval query including "current bath solution temperature requirements", and verifying returned results include text parameters and image links.
- Initiating a retrieval query including "hazardous waste disposal requirements", and checking returned results only associate knowledge base collections of hazardous waste ledgers and environmental protection specifications, with no irrelevant bath solution analysis records mixed in.
- Adjusting the
similarityparameter to 0.7, initiating a retrieval, and confirming the relevance of recall results meets business expectations, with no excessive low-match content. - Incrementally uploading a new bath solution analysis record, initiating a retrieval for the corresponding bath number, and confirming the newly uploaded document is successfully recalled.
The values given are common starting points and should be measured against the reader's own samples.