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Weicheng Dai

2 accepted papers

2024

Calibrating Multi-modal Representations: A Pursuit of Group Robustness without Annotations

CVPR 2024poster

Fine-tuning pre-trained vision-language models like CLIP has yielded success on diverse downstream tasks. However several pain points persist for this paradigm: (i) directly tuning entire pre-trained models becomes both time-intensive and computationally costly. Additionally these tuned models tend…

2023

Rethinking Semi-Supervised Medical Image Segmentation: A Variance-Reduction Perspective

NeurIPS 2023poster

For medical image segmentation, contrastive learning is the dominant practice to improve the quality of visual representations by contrasting semantically similar and dissimilar pairs of samples. This is enabled by the observation that without accessing ground truth labels, negative examples with tr…