What data for this category looks like
Data for this category comes from global mainstream precious metals exchange market data APIs, monthly supply and demand reports from industry associations, official reserve disclosure data from central banks, and inventory ledgers from physical delivery warehouses. Data update frequencies fall into four categories: real-time market data refreshed every 5 minutes, weekly industry updates, monthly supply and demand analysis, and quarterly reserve data. Standard document structures include fields such as contract code, product name, purity specification, quotation unit, delivery benchmark, inventory quantity, and trading hours. Quotation units are mostly yuan/gram and US dollars per ounce, while inventory units are mostly kilograms or tons.
What constraints these characteristics impose on knowledge base retrieval and recall
The high-frequency updates of real-time market data require retrieval results to match the latest available data. As a result, the recall process must prioritize document content updated within the last 7 days. The presence of multi-dimensional fields and specialized units requires precise matching of fields such as contract code, purity specification, and quotation unit during retrieval, to prevent recall failure caused by unit confusion. The mixed distribution of long-cycle industry reports and short-cycle real-time market documents requires filtering scenario-appropriate document types via update time tags, while setting a reasonable segment length for long documents to ensure retrieval fragments cover core information.
Configuration settings
| Configuration Item | Recommended Value | Rationale | |
|---|---|---|---|
recall count | Top 10-15 entries | Precious metals data includes real-time market data and long-cycle reports. Too many entries will exceed the context window, while too few will fail to cover multi-dimensional information | |
similarity threshold | 0.75-0.85 | Precise matching of fields such as precious metals contract codes and purity has high requirements. A threshold that is too low will introduce irrelevant documents, while a threshold that is too high will miss relevant results | |
segment length | 800-1200 characters | Long-cycle industry reports have clear paragraph structures. The segment length adapts to the context carrying capacity of most scenarios, while avoiding including too much irrelevant information in a single segment | |
PARSE_FILE_TIMEOUT_SECONDS | 120 seconds | Large CSV format inventory ledger files have large data volumes, requiring sufficient parsing time to be reserved | |
citation content template | `【Document Source: {source} | Update Time: {updateTime}】{content}` | Due diligence reports require clear labeling of data sources and update times to meet compliance requirements |
custom delimiter | Configured according to the actual format of the file, default to \n | Most precious metals data CSV files use standard line breaks to separate rows. If the exported file uses other delimiters such as tabs, the configuration must be modified accordingly |
The parameter values provided on this page are conventional recommendations used to establish a starting point 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 values.
Three common configuration errors
- When uploading CSV-format precious metals inventory data, the custom delimiter fails to correctly separate file lines, resulting in disordered parsed fields. The root cause is failure to confirm that the actual delimiter used by the CSV file matches the configuration item. Some exported CSV files may use tabs as delimiters, which do not match the comma used in the default configuration.
- The user authentication configuration for the knowledge base search node does not take effect, allowing unauthorized users to access full precious metals due diligence data. The root cause is that authentication rules are not bound to the permission scope of the corresponding knowledge base, or the authentication verification switch is not enabled in the node configuration.
- No latest real-time precious metals market data is matched in retrieval results, and the number of returned results is far lower than expected. The root cause is that no update time filter condition is set in the recall link, or the similarity threshold is set too high, causing short documents containing real-time market data fragments to be missed.
How to verify correct configuration
- Upload a test CSV file containing precious metals data, check whether the parsed fields match the original file, and confirm that the custom delimiter configuration takes effect.
- Initiate a retrieval targeting a specific precious metals contract code, and verify that the update time of the returned results matches the expected time range.
- View the authentication logs of the knowledge base node, confirm that only authorized users can trigger retrieval requests, and unauthorized requests are blocked.
- Adjust the segment length configuration, retrieve long-cycle industry reports, and verify that the returned retrieval fragment length matches the preset range.
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.