| """ttv_utils包提供了用于特征预测 和 模型训练过程收集 的工具函数 | |
| 主要组件: | |
| 1. FeaturePredictor: 用于从模型中间层特征向量预测预测结果的类 | |
| 使用示例: | |
| ```python | |
| predictor = FeaturePredictor( | |
| model_class=model, 模型类 | |
| model_weights_path=weight_path,模型权重文件路径 | |
| layer_info_path=layer_info_path,层信息文件路径 | |
| device=device 运行设备 | |
| ) | |
| ``` | |
| 2. predict_feature: 从模型中间层特征向量预测预测结果便捷函数 | |
| 使用示例: | |
| ```python | |
| output = predict_feature( | |
| model=model, # 模型类 | |
| weight_path=weight_path, # 模型权重文件路径 | |
| layer_info_path=layer_info_path, # 层信息文件路径 | |
| feature=feature, # 特征向量 | |
| device=device # 运行设备 | |
| ) | |
| ``` | |
| 3. time_travel_saver: 用于在训练过程中保存模型权重、特征和预测结果的类 | |
| 使用示例: | |
| ```python | |
| # 创建一个保存器实例 | |
| saver = time_travel_saver( | |
| model=model, # 模型实例 | |
| dataloader=ordered_loader, # 顺序数据加载器 | |
| device='cuda:0', # 计算设备 | |
| save_dir='./checkpoints', # 保存根目录 | |
| model_name='alexnet', # 模型名称 | |
| interval=1 # 每隔多少个epoch保存一次 | |
| ) | |
| # 在训练循环中调用save方法 | |
| for epoch in range(epochs): | |
| # 训练代码... | |
| if epoch % interval == 0: | |
| saver.save(model) # 保存当前epoch的模型状态 | |
| ``` | |
| 保存的文件结构: | |
| - model/{epoch}.pth: 模型权重 | |
| - dataset/representation/{epoch}.npy: 特征向量 | |
| - dataset/prediction/{epoch}.npy: 预测结果 | |
| - dataset/label/labels.npy: 标签 | |
| """ | |
| from .feature_predictor import FeaturePredictor, predict_feature | |
| from .save_embeddings import time_travel_saver | |
| __all__ = ['FeaturePredictor', 'predict_feature', 'time_travel_saver'] | |