2 papers
cs.CV2026
Contrastive Joint-Embedding Prediction for Representation Learning in Structural MRI
Fabian Mager, Lars Kai Hansen
Self-supervised learning offers a compelling approach for medical imaging, where labeled data are scarce and acquisition costs are high. We present COJEPA, a self-supervised framew…
cs.LG2026
On the modality gap and the contrastive loss in multi-modal representation learning
Fabian Mager, Hiba Nassar, Lars Kai Hansen
We study the modality gap in CLIP-style dual-encoder contrastive learning, where image and text embeddings remain misaligned despite being trained in a shared space. We argue that…