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README.md
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| 1 |
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# GenAI PDF Paper Tutor
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一个基于 Gradio 的论文阅读小工具:
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- 上传 PDF 论文
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- 生成中文讲解(角色风格化)
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- 支持讲解 TTS(手动点击)
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- 进入 Exam 页面后生成 MCQ(选择题)
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- 支持多角色(从 `characters/` 目录自动读取)
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## 功能流程
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1. 在讲解页选择角色
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2. 上传 PDF,点击 `Generate`
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3. 查看讲解内容(可点击 `Play Lecture Audio`)
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4. 点击 `Exam` 进入考试页
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5. 在考试页重新选择角色
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6. 点击底部 `Generate` 生成 MCQ
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7. 开始答题(答错会显示解析,并可播放解析语音)
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## 运行环境
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- Python 3.10+
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- 已安装依赖(见 `requirements.txt`)
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安装依赖:
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```bash
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pip install -r requirements.txt
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```
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运行:
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```bash
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python app.py
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```
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## API 配置(DashScope / OpenAI-compatible)
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项目会从 `.env` 读取 API 配置(已兼容 `API_UR` 和 `API_URL`):
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```env
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API_UR="https://dashscope.aliyuncs.com/compatible-mode/v1"
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API_KEY="你的Key"
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```
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说明:
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- 讲解/MCQ 使用 OpenAI-compatible `/chat/completions`
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- TTS 优先尝试 `/audio/speech`,失败后回退 DashScope TTS 接口
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## 角色目录结构(自动发现)
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下拉/角色按钮会自动读取 `characters/` 下的所有子目录。
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示例:
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```text
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characters/
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snape/
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meta.json
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avatar.jpg
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lecture_prompt.txt
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mcq_prompt.txt
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mcq_retry_prompt.txt
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```
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`meta.json` 常用字段:
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- `id`
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- `display_name`
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- `tagline`
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- `byline`
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- `chat_label`
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- `chat_mode`
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- `avatar`
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- `lecture_prompt_file`
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- `mcq_prompt_file`
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- `mcq_retry_prompt_file`
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如果某个角色目录没有 `meta.json`,系统也会显示该目录(用目录名作为角色名,并使用默认 prompt)。
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## 常见问题
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### 1. 生成很慢
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这是正常现象(PDF 渲染 + VL 推理耗时较高)。可尝试:
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- 减少页数:`QWEN_VL_MAX_PAGES=1` 或 `2`
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- 降低渲染尺度:`QWEN_VL_RENDER_SCALE=1.0`
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### 2. PDF 无法提取文本
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请确认已安装 `pypdf`:
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```bash
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pip install pypdf
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```
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### 3. MCQ 生成失败 / JSON 错误
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模型可能返回不完整 JSON,代码里已做重试与解析兜底;如果仍失败可重试一次或更换角色 prompt。
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