@inproceedings{wang2021improving, title={Improving Weakly Supervised Visual Grounding by Contrastive Knowledge Distillation}, author={Wang, Liwei and Huang, Jing and Li, Yin and Xu, Kun and Yang, Zhengyuan and Yu, Dong}, booktitle={Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition}, pages={14090--14100}, year={2021} }