What the data for this category looks like
Data sources for commercial property financing daily reports include commercial property operation management systems, financing approval ledgers from partner banks, and public business disclosure information from district commercial management committees. The update cadence is daily T+1 updates. Each document corresponds to the daily financing and business updates of a single commercial property project. The document structure includes fields such as project unique ID, project name, affiliated business district, occupancy rate metric, average daily rent data, financing application amount, approved bank name, approval date, and more. The rent unit is yuan per square meter per day, the financing amount unit is ten thousand yuan, and the project area unit is square meters.
What constraints these characteristics impose on the knowledge base retrieval and recall link
The daily update nature of commercial property financing daily reports causes rapid growth of the knowledge base size. Full retrieval response latency and token consumption increase as the number of documents rises. Documents contain three types of fields: business, financing, and property attributes. There are significant differences in retrieval priority across different fields, so precise field-level recall configuration is required to avoid irrelevant content interfering with retrieval results. Each document focuses on the daily updates of a single project, and user searches usually specify project names or business district ranges, so conditional filtering based on business attributes must be supported. There are minor format differences in documents collected across systems, so unified field parsing rules are needed to ensure format and semantic consistency of recalled content.
How to configure the settings
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
UPLOAD_FILE_MAX_SIZE | 200 MB | Single commercial property financing daily report may include batch data for multiple projects. The default 100 MB limit cannot meet the upload requirements for batch documents |
RECALL_TOP_K | Top 15-20 results | Retrieval for commercial property financing daily reports needs to cover historical financing and business data for the same project. Sufficient recall results can improve result completeness |
chunk_size | 800-1200 characters | Documents contain a mix of financial values and text descriptions. Segment length in this range preserves contextual association of core fields and avoids semantic fragmentation |
similarity_threshold | 0.72-0.80 | Financing-related data has strong professionalism. This threshold can filter low-relevance retrieval results while retaining historical daily reports for the same project |
incremental_sync | Enabled | Daily reports are updated daily. Full synchronization takes too long. Incremental synchronization only processes new and modified documents, improving retrieval efficiency |
field_weight_config | Set higher weights for financing amount and project name fields | Financing amount and project name are core retrieval requirement fields in documents. Increasing their weights can optimize the relevance ranking of retrieval results |
The parameter values provided on this page are all conventional recommendations used to determine starting points for configuration. Actual values are affected by material form, data volume, and business rules. Specific issues require case-by-case analysis. It is recommended to test on your own samples before finalizing values.
Three common configuration mistakes
- Phenomenon: Retrieval response time exceeds 10 seconds, and token consumption during model calls exceeds the preset limit. Cause: Incremental synchronization is not enabled, full retrieval scans all historical documents, and a reasonable
chunk_sizeis not set, leading to too many or too long segments, increasing resource consumption for retrieval and context filling. - Phenomenon: An "file size exceeded" error pops up on the interface when uploading batch commercial property financing daily report documents. Cause: The
UPLOAD_FILE_MAX_SIZEparameter is not modified, and the default 100 MB limit is still used. The size of a single batch document exceeds this threshold. - Phenomenon: Retrieval results in the workspace knowledge base simple application only return 1 document, and the interface shows "Knowledge Base Reference (1)". Cause: The
RECALL_TOP_Kparameter is not adjusted, or the parameter value is only set to 1, and multi-document recall configuration is not enabled.
How to confirm the configuration is successful
- Upload a single batch financing daily report document containing multiple projects, check the upload log and parsing results to confirm that the
UPLOAD_FILE_MAX_SIZEconfiguration takes effect. - Initiate a retrieval request that includes project name and financing amount, check the number of documents in the retrieval results to verify that the
RECALL_TOP_Kvalue matches expectations. - Compare the retrieval results of newly added documents and historical documents on the same day to confirm that incremental synchronization is enabled, and only newly added documents are included in the retrieval scope.
- View the field weight configuration interface to confirm that the weights of core business fields are higher than other fields, and verify that the relevance ranking of retrieval results meets business requirements.
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.