Kaggle Competition: Pneumothorax Segmentation — Top 7% Bronze Medal (2019)
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Kaggle SIIM-ACR Pneumothorax Segmentation competition (summer 2019). Built a U-Net with EfficientNet-B4 encoder and ResNet decoder to segment pneumothorax regions in chest X-rays. Ranked 98/1475 (top 7%, bronze medal) with a Dice score of 0.8407 on the private leaderboard.