@article{ridedifficultyevolvingperturbationwithit, title = {RIDE: Difficulty Evolving Perturbation with Item Response Theory for Mathematical Reasoning}, author = {Xinyuan Li and Murong Xu and Wenbiao Tao and Hanlun Zhu and Yike Zhao and Jipeng Zhang and Yunshi Lan}, year = {2025}, eprint = {2511.04120}, archivePrefix = {arXiv}, url = {https://arxiv.org/abs/2511.04120}, }