metadata
description: >-
Discover details for "HungarianMatcher" & "inverse_sigmoid" functions in
Ultralytics YOLO, advanced tools supporting detection models.
keywords: >-
Ultralytics, YOLO, HungarianMatcher, inverse_sigmoid, detection models, model
utilities, ops
Reference for ultralytics/models/utils/ops.py
!!! note
Full source code for this file is available at [https://github.com/ultralytics/ultralytics/blob/main/ultralytics/models/utils/ops.py](https://github.com/ultralytics/ultralytics/blob/main/ultralytics/models/utils/ops.py). Help us fix any issues you see by submitting a [Pull Request](https://docs.ultralytics.com/help/contributing/) 🛠️. Thank you 🙏!