Glenn Jocher 23fc50641c
ultralytics 8.0.105 classification hyp fix and new onplot callbacks (#2684)
Co-authored-by: ayush chaurasia <ayush.chaurarsia@gmail.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Ivan Shcheklein <shcheklein@gmail.com>
2023-05-17 19:10:20 +02:00

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---
description: Learn how to use Ultralytics YOLO's built-in callbacks `on_pretrain_routine_start` and `on_train_epoch_end` for improved training performance.
---
# on_pretrain_routine_start
---
:::ultralytics.yolo.utils.callbacks.wb.on_pretrain_routine_start
<br><br>
# on_fit_epoch_end
---
:::ultralytics.yolo.utils.callbacks.wb.on_fit_epoch_end
<br><br>
# on_train_epoch_end
---
:::ultralytics.yolo.utils.callbacks.wb.on_train_epoch_end
<br><br>
# on_train_end
---
:::ultralytics.yolo.utils.callbacks.wb.on_train_end
<br><br>