Data Structure of This Category
Commercial real estate financing daily report data is sourced from financing filing information for local commercial real estate projects, loan announcements from banks and trust institutions, operation reports of commercial complexes, and other relevant materials. Updates occur daily. Each document is a multi-row table stored as a single-page XLSX file. The document structure includes two core sections: basic project information and financing updates. Fields cover project name, city location, financing party type, financing amount (unit: ten thousand yuan), loan time, annual interest rate (unit: %), collateral type, rent coverage ratio, and additional relevant fields. Each row corresponds to the daily financing details of one independent commercial real estate project.
Constraints for Knowledge Base Retrieval and Recall
The structured table format of commercial real estate financing daily reports requires retrieval systems to accurately identify row and column associated fields, and avoid mixing fields from different projects. The daily update cadence means retrieval systems must support incremental indexing. Full indexing leads to excessive retrieval latency and resource consumption. Fields include numeric data with varying units, so systems must support numeric range retrieval, rather than relying solely on plain text matching. Commercial real estate project names may repeat across different cities, so joint retrieval with the city location field is required to prevent recalling irrelevant projects. Each single document contains multiple independent entries, so each entry must be correctly split and indexed to improve retrieval accuracy.
Configuration Settings
| Configuration Item | Recommended Setting | Rationale |
|---|---|---|
PARSE_TABLE_MODE | Intelligent Structured Parsing | Commercial real estate financing daily reports are structured XLSX files with multiple rows and columns. The intelligent mode accurately identifies row and column associated fields to avoid splitting errors |
UPLOAD_FILE_MAX_SIZE | 100 MB | The size of a single commercial real estate financing daily report XLSX file usually does not exceed this threshold, preventing parsing timeouts |
CHUNK_SIZE | 600–1000 characters | The financing information for a single commercial real estate project is moderately sized. This chunk length ensures field integrity and retrieval accuracy |
RECALL_TOP_K | Top 6–10 results | Commercial real estate financing projects are distributed across a wide range. A sufficient number of same-category results must be recalled to support retrieval needs |
SIMILARITY_THRESHOLD | 0.70–0.82 | For retrieval scenarios that mix numeric and text fields, this threshold balances recall rate and accuracy |
INDEX_INCREMENTAL_INTERVAL | 1 hour | Financing daily reports are updated daily with incremental data. This interval ensures data freshness while reducing indexing pressure |
The parameter values provided on this page are common starting points for configuration. Actual values are affected by material format, data volume, and business rules. Specific issues require individual analysis. Testing on local samples is recommended before finalizing settings.
Three Common Configuration Errors
- Issue: Structured fields such as "annual interest rate" and "financing amount" appear empty in the parsed knowledge base. Cause: Structured table parsing mode is not enabled, and XLSX content is only split by row, making structured field extraction impossible.
- Issue: Knowledge base search response time exceeds the preset threshold in version 4.8.20, returning status code 500. Cause: Incremental indexing is not configured, and full indexing loads all daily report files each time, causing latency in the retrieval pipeline.
- Issue: Knowledge base retrieval returns no matching content, with the interface displaying "No relevant results". Cause: Separate retrieval rules are not configured for numeric fields, and fields such as financing amount are treated as plain text, making it impossible to match submitted numeric queries.
How to Verify Proper Configuration
- A test commercial real estate financing daily report XLSX file is uploaded, and the parsed field list is checked to confirm it includes the preset business fields.
- A retrieval for a specific commercial real estate project is initiated, the number of recalled results and field integrity are verified, and the similarity threshold is adjusted to meet business requirements.
- Index task run logs are checked to confirm incremental indexing executes automatically at the preset interval, with no parsing failure errors.
- Numeric field retrieval is tested: A specific financing amount range is entered, and corresponding entries are confirmed to be recalled.
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.