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1. Equivariant-SAR-Segmentation Equivariant-SAR-Segmentation Public

   D4-equivariant CNN for pixel-level avalanche debris segmentation from bi-temporal Sentinel-1 SAR. Matches SOTA Swin-UNet on pixel F1 with 3.8x fewer params; beats it on instance-level detection F1.

   Python 1

2. Equivariant-CNN-SAR Equivariant-CNN-SAR Public

   Group-equivariant CNNs for avalanche debris detection in Sentinel-1 SAR imagery. A D4 bi-temporal model (~391K params) reaches AUC=0.912 on a geographically unseen test region.

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3. mathnet-eval-harness mathnet-eval-harness Public

   An open 1.7B base ties GPT-5.4 Mini on 500 MathNet olympiad problems; four QLoRA fine-tunes all ended below the base, with a clean mechanistic diagnosis of why.

   Python