What the Data for This Category Looks Like
The data for construction machinery financing daily reports comes from officially registered construction machinery industry platforms, third-party leasing transaction data service providers, and financing registration systems of local industrial and information departments. Each early morning, full valid financing data for the previous day is updated. Each daily report uses a structured table format, with fields including official equipment model, purchaser/lessee name, financing amount, financing term, loan date, official registration number, unified social credit code of transaction subject, and more. Financing amounts are denominated in RMB yuan. Financing terms use natural months or natural days as units. Registration numbers are 18-character unique identifiers combining letters and numbers.
Constraints on Citation Sources and Traceability
Full daily updated data requires citation traceability to strictly limit the time range to the current day. Otherwise, historical financing projects will be included, making cited content inconsistent with the daily report’s theme. Structured fields include unique identifiers, so matching logic must bind equipment model and registration number. Relying only on full-text semantic matching will confuse financing transactions of the same model but different batches. Uniform field units require that original units are retained during citation display. Otherwise, traceability errors will occur due to inconsistent amount units. Moderate individual data entry length requires that field relevance is preserved during segment processing. Splitting data will break transaction information and reduce traceability accuracy.
Configuration Settings
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
Similarity Recall Count | Top 8 to 12 entries | Individual entries in construction machinery financing daily reports have clearly defined fields. Too many recalls will introduce irrelevant financing projects, while too few will fail to cover all valid financing for the current day. |
Similarity Threshold | 0.85-0.90 | Data fields for this category have high standardization. A lower threshold will easily recall financing records for the same model equipment not from the current day. A higher threshold can accurately match financing projects reported on the current day. |
Citation Source Matching Fields | Equipment Model + Registration Number | The unique identifier for construction machinery financing projects is the equipment model and official registration number. Using this as the matching basis avoids confusion between financing of the same model but different batches. |
Source Data Time Filter | Current day 00:00-23:59 | Financing daily reports update daily with that day’s data. Recalling data outside the time range will make citation sources inconsistent with the daily report’s date. |
Single Document Segment Length | 600-800 characters | Individual construction machinery financing daily report entries include multiple fields such as equipment, amount, and term. Too long a segment will lose field relevance, while too short a segment will damage data integrity. |
The parameter values provided on this page are common recommended starting points for configuration. Actual values are affected by material form, data volume, and business rules. Specific issues require specific analysis. It is recommended to test on your own samples before finalizing settings.
Three Common Configuration Errors
- Phenomenon: When configuring
Similarity Recall Count, the available options are only 100 or 900. It is not possible to set a value around 300. Cause: The current version of the knowledge base recall configuration does not allow custom settings for the middle range. Parameters must be adjusted via API calls. - Phenomenon: The citation source does not include the financing project’s registration number field. Cause: The
Citation Source Matching Fieldsare not configured as Equipment Model + Registration Number. Using only full-text matching fails to accurately associate the unique identifier unique to this category. - Phenomenon: Recalled citation content includes yesterday’s financing projects. Cause: The
Source Data Time Filterparameter is not enabled, or the parameter value is not limited to the current day. This causes historical data outside the time range to be recalled.
How to Verify Proper Configuration
- Initiate a query targeting the current day’s construction machinery financing projects. Check if the date range of citation sources in the response matches the pre-defined conditions.
- Review the displayed content of citation sources. Confirm that the equipment model and registration number fields are included, to verify that the matching logic is effective.
- Adjust the
Similarity Thresholdto different ranges. Verify that the number of recall results meets the expected matching accuracy requirements. - Import a batch of historical financing daily report data, initiate a corresponding query. Confirm that this historical data is not recalled by the citation sources for the current day’s query.
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.