| ---
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| description: Learn how to use BaseTrainer in Ultralytics YOLO for efficient model training. Comprehensive guide for configurations, datasets, and optimization.
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| keywords: Ultralytics, YOLO, BaseTrainer, model training, configuration, datasets, optimization, machine learning
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| ---
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| # Reference for `ultralytics/engine/trainer.py`
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| !!! note
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| This file is available at [https://github.com/ultralytics/ultralytics/blob/main/ultralytics/engine/trainer.py](https://github.com/ultralytics/ultralytics/blob/main/ultralytics/engine/trainer.py). If you spot a problem please help fix it by [contributing](https://docs.ultralytics.com/help/contributing/) a [Pull Request](https://github.com/ultralytics/ultralytics/edit/main/ultralytics/engine/trainer.py) 🛠️. Thank you 🙏!
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| <br>
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| ## ::: ultralytics.engine.trainer.BaseTrainer
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| <br><br>
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