@inproceedings{zhou2021detecting, title={Detecting Twenty-thousand Classes using Image-level Supervision}, author={Zhou, Xingyi and Girdhar, Rohit and Joulin, Armand and Kr{\"a}henb{\"u}hl, Philipp and Misra, Ishan}, booktitle={arXiv preprint arXiv:2201.02605}, year={2021} }