What the data for this category looks like
Data for residential development financing daily reports comes primarily from three sources: internal capital supervision ledgers of real estate enterprises, daily credit feedback documents from cooperating commercial banks, and project capital disclosure platforms of local housing and construction authorities. Data is synchronized at fixed daily times. Cross-regional project remote supervision data may have a 1 to 2 hour delay. Each daily report document includes fields such as project filing number, plot location, total development loan credit line, daily capital revenue and expenditure details, remaining available quota, supervision account balance, and more. Units are uniformly ten thousand yuan and square meters.
Constraints on Knowledge Base Retrieval and Recall
Multi-source heterogeneous data requires the knowledge base to support unified field mapping across data sources, to avoid format conflicts during retrieval. The daily update rhythm requires incremental synchronization intervals to not exceed the data production delay duration. Otherwise, recall results will lag. Structured quota and filing number fields require the retrieval chain to support exact matching and numeric range filtering. Cross-regional project remote data delay requires prioritizing locally latest synchronized data entries during recall.
Configuration Settings
| Configuration Item | Recommended Setting | Rationale |
|---|---|---|
UPLOAD_FILE_MAX_SIZE | 1500 MB | Bulk CSV or packaged documents for a single residential development financing daily report typically do not exceed 400 MB, with reasonable upload buffer reserved |
PARSE_FILE_TIMEOUT_SECONDS | 900 seconds | Daily reports for large cross-regional projects may include multi-page details, requiring sufficient time for field parsing and text splitting |
chunk_size | 800–1200 characters | Most daily report fields are structured numerical values and brief descriptions. Segment length is matched to field length to avoid context breaks |
top_k | Top 8 entries | Valid entries for residential development financing daily reports typically concentrate in the first few project-related entries. Excessive recall will introduce irrelevant data |
similarity_threshold | 0.72–0.85 | Need to distinguish retrieval requirements for exact matching (such as project numbers, quotas) and fuzzy descriptions. A threshold that is too low will introduce redundant results |
rerank_top_n | Top 3 entries | Core financing data has high relevance priority. The most relevant entries are retained after reranking for downstream calls |
The parameter values provided on this page are common recommended starting points for configuration. Actual values are affected by material format, data volume, and business rules. Specific issues require case-by-case analysis. It is recommended to test against your own samples before finalizing settings.
Three Common Configuration Mistakes
- Symptom: When uploading a CSV file with long project descriptions, the system displays the error "Question length exceeds 8000 character limit". Cause: The default configuration of the
MAX_QUESTION_LENGTHparameter was not adjusted, and it was not adapted to the long text entries of residential development financing daily reports. - Symptom: Calling the
/api/kb/contentinterface returns a 415 Unsupported Media Type error. The docx file can be downloaded normally when accessing the corresponding link in a browser. Cause: The interface request header did not correctly set the matching Content-Type, or the incoming document parsing format is not supported by the knowledge base. - Symptom: Retrieval results do not include the day's updated financing daily report data after local deployment. Cause: The
increment_sync_intervalparameter was not configured to an interval of less than 1 hour, and it did not match the daily update rhythm of the daily reports.
How to Verify Correct Configuration
- Upload a single test CSV file containing more than 10 project details, check that the upload progress and parsing logs have no timeout or format error prompts.
- Initiate a retrieval request containing a specific project filing number, verify that the recall results include the corresponding entry and the sorting matches the configured expectations.
- Adjust the
similarity_thresholdto the boundary values of 0.7 and 0.9, verify that the number of recall results changes with the threshold in line with configuration logic. - Wait for one full incremental synchronization cycle, check whether the knowledge base contains the latest financing daily report data.
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.