Data Characteristics
Quality documents in the neurodegenerative disease field include clinical trial protocols, investigator brochures, informed consent forms, ethics approval documents, drug manufacturing and quality control records, batch release records, and post-market pharmacovigilance reports. Data sources are diverse, including CRO clinical data management systems, pharmaceutical quality management systems (QMS), laboratory information management systems (LIMS), and regulatory submission platforms. Updates are frequent; clinical phase protocol revisions, adverse event reports, and regulatory inquiries may generate daily or weekly increments. Document structures are complex, often containing nested tables, figures, and cross-references. Fields and units strictly adhere to international standards like ICH GCP and GMP, for example, dose units mg/kg, time points T0, T1h, T24h, and specific disease rating scales (e.g., MMSE, ADAS-Cog) with defined value ranges.
Constraints on Deployment and Upgrade
The complex data characteristics of neurodegenerative disease quality documents impose specific requirements on FastGPT deployment and upgrade processes. Frequent updates necessitate efficient incremental indexing and version control to avoid re-processing unchanged data and ensure timely retrieval. Extensive nested tables and figures in documents require powerful structured information extraction capabilities from file parsers; otherwise, critical data may be lost or misinterpreted. Strict field and unit standards demand precise pre-processing and validation during data ingestion to ensure subsequent question-answering accuracy. Due to large volumes of sensitive data, deployment environments must consider storage scalability, computational resources, and data security and compliance. During upgrades, new version compatibility with complex document parsing must be monitored, and smooth migration of existing data indexes must be ensured.
Configuration Settings
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
UPLOAD_FILE_MAX_SIZE | 200 MB | Supports large clinical study reports and batch production records. |
PARSE_FILE_TIMEOUT_SECONDS | 600 seconds | Accommodates parsing time for complex documents (e.g., multi-nested PDF tables). |
Chunk size | 800–1200 characters | Balances context completeness and recall precision for long reports. |
Recall count | Top 8–12 entries | Covers more relevant segments, improving comprehensiveness for complex questions. |
Similarity threshold | Calibrated by measurement | Ensures strict matching of medical terminology, preventing semantic drift. |
Rerank result count | 5 entries | Refines final answers, focusing on the most relevant key information. |
Three Common Mistakes
- During large file uploads, the file upload progress bar stalls for an extended period or directly returns an
HTTP 504 Gateway Timeouterror. This typically occurs becauseUPLOAD_FILE_MAX_SIZEor reverse proxy timeout settings are too low to support the transfer of large documents such as neurodegenerative research reports. - Uploaded PDF documents have incomplete segmentation results in the knowledge base or missing critical table content. The default document parser may lack the ability to correctly extract structured information from complex, multi-nested tables and figures unique to the neurodegenerative field.
- When querying questions involving specific disease rating scale values, the system returns answers that do not match or are missing from the original data. This often happens because field units and value ranges were not pre-processed and validated during data ingestion, leading to errors in indexed data.
How to Verify Configuration
- Upload a clinical trial report PDF containing multi-nested tables and figures. Check if the knowledge base segmentation results are complete and if table content is correctly identified and converted into retrievable text.
- Select a newly revised pharmacovigilance report. Upload it and observe its index update speed to verify efficient incremental update mechanisms. Query for new content in the report to confirm accurate recall.
- Ask questions involving specific dose units (e.g.,
mg/kg) and disease scores (e.g., MMSE scores). Compare the numerical values and units in the returned answers with the original document to validate the effectiveness of the data validation mechanism.
The values provided 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 2026-09-21.