@article{rank1approximationofinversefisherfornatu, title = {Rank-1 Approximation of Inverse Fisher for Natural Policy Gradients in Deep Reinforcement Learning}, author = {Yingxiao Huo and Satya Prakash Dash and Radu Stoican and Samuel Kaski and Mingfei Sun}, year = {2026}, eprint = {2601.18626}, archivePrefix = {arXiv}, url = {https://arxiv.org/abs/2601.18626}, }