@article{enhancinggradientinversionattacksinfeder, title = {Enhancing Gradient Inversion Attacks in Federated Learning via Hierarchical Feature Optimization}, author = {Hao Fang and Wenbo Yu and Bin Chen and Xuan Wang and Shu-Tao Xia and Qing Liao and Ke Xu}, year = {2026}, eprint = {2604.00955}, archivePrefix = {arXiv}, url = {https://arxiv.org/abs/2604.00955}, }