# 训练配置 data: annotations_jsonl: ../data/annotations.jsonl frames_dir: ../data/frames labels_csv: ../data/labels.csv sampling: sample_fps: 1.0 positive_window_sec: 3.0 other_downsample_ratio: 2 model: backbone: mobilenet_v3_small image_size: 224 pos_weight: null train: batch_size: 32 epochs: 40 lr: 0.0005 early_stop_patience: 8 num_workers: 0 freeze_backbone: true export: opset: 17 quantize: true output_dir: ../models