@article{hardnegativecontrastivelearningforfine, title = {Hard Negative Contrastive Learning for Fine-Grained Geometric Understanding in Large Multimodal Models}, author = {Kai Sun and Yushi Bai and Zhen Yang and Jiajie Zhang and Ji Qi and Lei Hou and Juanzi Li}, year = {2025}, eprint = {2505.20152}, archivePrefix = {arXiv}, url = {https://arxiv.org/abs/2505.20152v1}, }