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description: Explore Ultralytics neural network utils, such as bias_init_with_prob, inverse_sigmoid and multi_scale_deformable_attn_pytorch functions.
keywords: Ultralytics, neural network, nn.modules.utils, bias_init_with_prob, inverse_sigmoid, multi_scale_deformable_attn_pytorch
---

# Reference for `ultralytics/nn/modules/utils.py`

!!! note

    This file is available at [https://github.com/ultralytics/ultralytics/blob/main/ultralytics/nn/modules/utils.py](https://github.com/ultralytics/ultralytics/blob/main/ultralytics/nn/modules/utils.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/nn/modules/utils.py) 🛠️. Thank you 🙏!

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## ::: ultralytics.nn.modules.utils._get_clones
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## ::: ultralytics.nn.modules.utils.bias_init_with_prob
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## ::: ultralytics.nn.modules.utils.linear_init_
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## ::: ultralytics.nn.modules.utils.inverse_sigmoid
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## ::: ultralytics.nn.modules.utils.multi_scale_deformable_attn_pytorch
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