What this category of data looks like
Commercial real estate financial report data is sourced from public periodic reports of listed commercial real estate enterprises and self-owned property operation ledgers. Update cadence follows quarterly, semi-annual, and annual cycles. Annual reports contain the most complete asset and operation information. Document structures are mostly multi-chapter, covering modules such as property asset overview, lease details, cash flow classification, and operating cost items. Fields include total rentable area, monthly rental income, single-tenant lease term, and cost categories, with corresponding units of square meters, CNY yuan, month, and CNY ten thousand.
What constraints do these characteristics impose on the traceability and citation process
Commercial real estate financial reports have two types of data sources: public disclosure documents and internal operation ledgers. The traceability link must distinguish permission scopes and labeling rules for the two source types, to avoid cross-permission citations. The multi-chapter structure of long documents easily causes slice association mismatches. Recalled fragments must be strictly bound to their corresponding financial report modules, to prevent situations where lease data is paired with cash flow slices. The fixed update cadence requires traceability information to be labeled with the report disclosure time point, to avoid referencing outdated quarterly or annual data. The presence of multi-dimensional segmented fields requires precise matching of fields and corresponding document fragments during recall, to prevent generalized recall of irrelevant content.
How to Set Configurations
| Configuration Item | Recommended Value Range | Rationale |
|---|---|---|
chunkSize | 800–1200 characters | The content length of a single module in commercial real estate financial reports ranges from 800 to 1500 characters. This value range preserves the complete semantics of modules such as lease and cash flow, and avoids slice fragmentation |
chunkOverlap | 150–200 characters | Field associations exist between financial report modules. Overlapping fragments preserve cross-module semantic connections, preventing module breaks during recall |
recallTopK | Top 6 results | Commercial real estate financial reports have multiple field dimensions. A sufficient number of recalled slices is required to cover modules such as lease, cash flow, and asset overview, avoiding omission of key information |
similarityThreshold | 0.72–0.78 | High precision is required for financial report fields. This threshold filters low-correlation generalized slices while retaining relevant fragments within the same module |
sourceMarkType | fullPath+reportPeriod | Both document source path and report disclosure cycle must be labeled, meeting the dual verification requirements of time point and source for commercial real estate financial report traceability |
PARSE_FILE_TIMEOUT_SECONDS | 300 seconds | Single annual commercial real estate financial report documents have large file sizes and long parsing times. This value avoids parsing timeout failures |
The parameter values provided on this page are common starting points for configuration. Actual values are affected by material form, data volume, and business rules. Specific issues require individual analysis. It is recommended to test on your own samples before finalizing the configuration.
Three Common Mistakes
- Phenomenon: Knowledge base Q&A returns results without displaying cited fragment details, and the
sourcefield is empty. Cause: TheenableSourceparameter is not enabled, or the output rule forsourceMarkTypeis not configured, causing the system to fail to capture source metadata of slices. - Phenomenon: A
408 Request Timeouterror is triggered when parsing large annual financial reports. Cause: ThePARSE_FILE_TIMEOUT_SECONDSparameter is not adjusted to an adapted duration. The default timeout duration is insufficient to complete long document parsing. - Phenomenon: Recalled slices cross module boundaries, such as a lease fragment paired with a cash flow module. Cause: The
chunkOverlapvalue is too low, and semantic connection fragments between modules are not retained, causing slice association breaks.
How to Confirm Proper Configuration
- Upload a single commercial real estate financial report document, view the parsed slice list, and check whether the metadata of each slice includes the document path and report cycle.
- Initiate a knowledge base Q&A, call the specified API interface, and check whether the returned results include source-related fields and corresponding fragment details.
- Adjust the
chunkSizeparameter and re-upload the document, compare whether the slice length change meets expectations. - Conduct a cross-module query simulation, such as "Explain the cash flow situation using lease data", check whether the recalled slices cover both the lease and cash flow modules.
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.