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Source channel @githubtrending · Post #14627 · Apr 24

#jupyter_notebook DINOv2 is a powerful AI model from Meta AI that learns to understand images without needing labeled data, using self-supervised learning. It was trained on 142 million images and creates strong visual features that work well for many tasks like image classification, depth estimation, and segmentation without extra fine-tuning. You can use its pretrained models easily with simple classifiers, saving time and effort. DINOv2 is efficient, scalable, and performs better than many other models, making it great for building versatile computer vision applications quickly and accurately. It’s open-source and ready to use with PyTorch. https://github.com/facebookresearch/dinov2

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@kejiqu · Post #4250 · 03/10/2026, 03:06 AM

宇宙是无限的吗? 观测数据显示宇宙呈现平坦状态,但其真实大小和超出可观测范围的整体形状可能永远无法确定。科学家指出,如同地球表面具有可测量的尺寸,如果地球膨胀,其尺寸会随时间增加。然而,宇宙的真实性质,包括其是否无限,以及超出可观测范围的形状,仍然是未解之谜。目前的技术手段无法确定宇宙的全局几何结构,其真实尺寸和形状可能永远无法被人类完全认知。SciTechDaily 🏷#Universe#Cosmic#Geometry#Observations 📢频道👥群组📝投稿