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44 lines
871 B
44 lines
871 B
---
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description: Improve YOLOv5 model training with Ultralytics' on-train callbacks. Boost performance on-pretrain-routine-end, model-save, train/predict start.
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---
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# on_pretrain_routine_end
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---
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:::ultralytics.yolo.utils.callbacks.hub.on_pretrain_routine_end
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<br><br>
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# on_fit_epoch_end
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---
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:::ultralytics.yolo.utils.callbacks.hub.on_fit_epoch_end
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<br><br>
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# on_model_save
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---
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:::ultralytics.yolo.utils.callbacks.hub.on_model_save
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<br><br>
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# on_train_end
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---
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:::ultralytics.yolo.utils.callbacks.hub.on_train_end
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<br><br>
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# on_train_start
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---
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:::ultralytics.yolo.utils.callbacks.hub.on_train_start
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<br><br>
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# on_val_start
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---
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:::ultralytics.yolo.utils.callbacks.hub.on_val_start
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<br><br>
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# on_predict_start
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---
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:::ultralytics.yolo.utils.callbacks.hub.on_predict_start
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<br><br>
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# on_export_start
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---
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:::ultralytics.yolo.utils.callbacks.hub.on_export_start
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<br><br>
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