Files
AIclinicalresearch/docs/02-通用能力层/02-文档处理引擎/README.md
HaHafeng beb7f7f559 feat(asl): Implement full-text screening core LLM service and validation system (Day 1-3)
Core Components:
- PDFStorageService with Dify/OSS adapters
- LLM12FieldsService with Nougat-first + dual-model + 3-layer JSON parsing
- PromptBuilder for dynamic prompt assembly
- MedicalLogicValidator with 5 rules + fault tolerance
- EvidenceChainValidator for citation integrity
- ConflictDetectionService for dual-model comparison

Prompt Engineering:
- System Prompt (6601 chars, Section-Aware strategy)
- User Prompt template (PICOS context injection)
- JSON Schema (12 fields constraints)
- Cochrane standards (not loaded in MVP)

Key Innovations:
- 3-layer JSON parsing (JSON.parse + json-repair + code block extraction)
- Promise.allSettled for dual-model fault tolerance
- safeGetFieldValue for robust field extraction
- Mixed CN/EN token calculation

Integration Tests:
- integration-test.ts (full test)
- quick-test.ts (quick test)
- cached-result-test.ts (fault tolerance test)

Documentation Updates:
- Development record (Day 2-3 summary)
- Quality assurance strategy (full-text screening)
- Development plan (progress update)
- Module status (v1.1 update)
- Technical debt (10 new items)

Test Results:
- JSON parsing success rate: 100%
- Medical logic validation: 5/5 passed
- Dual-model parallel processing: OK
- Cost per PDF: CNY 0.10

Files: 238 changed, 14383 insertions(+), 32 deletions(-)
Docs: docs/03-涓氬姟妯″潡/ASL-AI鏅鸿兘鏂囩尞/05-寮€鍙戣褰?2025-11-22_Day2-Day3_LLM鏈嶅姟涓庨獙璇佺郴缁熷紑鍙?md
2025-11-22 22:21:12 +08:00

2.3 KiB
Raw Blame History

文档处理引擎

能力定位: 通用能力层
复用率: 86% (6个模块依赖)
优先级: P0
状态: 已实现Python微服务


📋 能力概述

文档处理引擎是平台的核心基础能力,负责:

  • 多格式文档文本提取PDF、Docx、Txt、Excel
  • OCR处理
  • 表格提取
  • 语言检测
  • 质量评估

📊 依赖模块

6个模块依赖86%复用率):

  1. ASL - AI智能文献文献PDF提取
  2. PKB - 个人知识库(知识库文档上传)
  3. DC - 数据清洗Excel/Docx数据导入
  4. SSA - 智能统计分析(数据导入)
  5. ST - 统计分析工具(数据导入)
  6. RVW - 稿件审查(稿件文档提取)

💡 核心功能

1. PDF提取

  • Nougat:英文学术论文(高质量)
  • PyMuPDF中文PDF + 兜底方案(快速)
  • 语言检测:自动识别中英文
  • 质量评估:提取质量评分

2. Docx提取

  • Mammoth转Markdown
  • python-docx:结构化读取

3. Txt提取

  • 多编码支持UTF-8、GBK等
  • chardet:自动检测编码

4. Excel处理

  • openpyxl读取Excel
  • pandas:数据处理

🏗️ 技术架构

Python微服务FastAPI

extraction_service/
  ├── main.py (509行)              - FastAPI主服务
  ├── services/
  │   ├── pdf_extractor.py (242行)    - PDF提取总协调
  │   ├── pdf_processor.py (280行)    - PyMuPDF实现
  │   ├── language_detector.py (120行) - 语言检测
  │   ├── nougat_extractor.py (242行) - Nougat实现
  │   ├── docx_extractor.py (253行)   - Docx提取
  │   └── txt_extractor.py (316行)    - Txt提取多编码
  └── requirements.txt

📚 API端点

POST /api/extract/pdf      - PDF文本提取
POST /api/extract/docx     - Docx文本提取
POST /api/extract/txt      - Txt文本提取
POST /api/extract/excel    - Excel表格提取
GET  /health               - 健康检查

🔗 相关文档


最后更新: 2025-11-06
维护人: 技术架构师