What this category's data looks like
Business data for real estate registration scenarios comes from the real estate registration information system, cadastral survey database, housing transaction online signing system, tax system, and electronic certificate repository. The update frequency is daily. Daily processed documents include registration applications, ownership certificates, survey results, tax payment vouchers, real estate ownership certificates, and registers. These cover multiple formats such as structured forms, scanned documents, and electronic certificates. Core fields involve right holder information, real estate location, right type, ownership status, and more. There is no unified fixed single-document structure, and multi-source data have format inconsistencies.
What constraints do these characteristics impose on the document parsing and chunking link
Multi-source heterogeneous document formats require the parsing link to adapt to multiple types including scanned documents, structured forms, and electronic certificates. This avoids loss of key information due to format incompatibility. Daily updated data scale requires the parsing process to have stable batch processing capabilities. This prevents timeouts or parsing failures from affecting business handling efficiency. The core business is real estate right confirmation. When chunking, context integrity of associated information such as right holders, locations, and right status must be retained. This prevents post-split inability to complete right verification. At the same time, the consequences of business errors must be strictly controlled. The chunking logic must avoid content confusion across documents or business links. This ensures information accuracy in subsequent verification links.
Reference only; verify against the target FastGPT release and deployment documentation.
How to set the configurations
| Configuration Item | Recommended Value Range | Rationale |
|---|---|---|
chunkSize | 800–1200 characters | Adapts to the information density of single chunks of ownership information and survey data in real estate registration documents, and avoids splitting associated right holder information and location addresses into different chunks |
chunkSplitter | Semantic segmentations + fixed-length fallback | Adapts to mixed-format registration applications and survey result documents, and balances field integrity of structured forms and reasonable segmentation of text after OCR for scanned documents |
customPdfParse | Enabled | Adapts to structured extraction requirements for electronic certificates and scanned real estate ownership certificates, and restores core fields such as right holders and right types in forms |
PARSE_FILE_TIMEOUT_SECONDS | 300–600 seconds | Matches the parsing time of large-volume survey result files, and prevents batch processing failures caused by timeout interruptions |
UPLOAD_FILE_MAX_SIZE | 500 MB | Adapts to the upper limit of batch files exported from the cadastral survey database, and meets business requirements for uploading multiple registration documents in a single operation |
chunkSettingMode | Manual configuration | Adjusts chunking rules for exclusive document types of real estate registration, and avoids business information fragmentation caused by general chunking logic |
Three common errors
- Phenomenon: After uploading a scanned real estate ownership certificate, the search test result is empty and there is no parsing completion prompt in the interface. Cause: The
customPdfParseconfiguration is not enabled, and structured form fields in the scanned document are not extracted, resulting in no valid chunks being generated. - Phenomenon: After batch uploading survey result PDF files, the system returns a parsing timeout error. Cause: The value of the
PARSE_FILE_TIMEOUT_SECONDSconfiguration is too low, and it does not adapt to the parsing time of large-volume survey documents. - Phenomenon: After uploading multiple mixed-format registration documents, the chunked content contains mixed tax payment vouchers and ownership certificates across documents. Cause: The
chunkSplitterconfiguration does not set semantic segmentation rules for real estate registration documents, resulting in incorrect merging of content from different business types.
How to confirm the configuration is properly set
- Upload a single real estate ownership certificate PDF, view the parsed chunk list, and confirm that core business fields such as right holder, location, and right type are included.
- Upload a large-volume survey result file, verify that the parsing process has no timeout errors, and that the chunked content fully covers key indicators of the survey data.
- Batch upload multiple types of documents such as registration applications and tax payment vouchers, confirm that all files generate valid chunks, and there are no parsing failure prompts.
- Run a search test, enter "ownership status of a certain real estate", confirm that the returned results include core information of the corresponding chunk, with no empty results or irrelevant content.
The values given are common starting points and should be measured against the reader's own samples.
Question material comes from public community discussions. Configuration values are common starting points and should be measured against your own samples. Verified on 2026-09-28.