--- description: Explore the YOLODataset and SemanticDataset classes in YOLO data. Learn how to efficiently handle and manipulate your data with Ultralytics. keywords: Ultralytics, YOLO, YOLODataset, SemanticDataset, data handling, data manipulation --- # Reference for `ultralytics/data/dataset.py` !!! note This file is available at [https://github.com/ultralytics/ultralytics/blob/main/ultralytics/data/dataset.py](https://github.com/ultralytics/ultralytics/blob/main/ultralytics/data/dataset.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/data/dataset.py) 🛠️. Thank you 🙏! --- ## ::: ultralytics.data.dataset.YOLODataset

--- ## ::: ultralytics.data.dataset.ClassificationDataset

--- ## ::: ultralytics.data.dataset.SemanticDataset

--- ## ::: ultralytics.data.dataset.load_dataset_cache_file

--- ## ::: ultralytics.data.dataset.save_dataset_cache_file