@article{pearlplanexplorationandadaptivereinforce, title = {PEARL: Plan Exploration and Adaptive Reinforcement Learning for Multihop Tool Use}, author = {Qihao Wang and Mingzhe Lu and Jiayue Wu and Yue Hu and Yanbing Liu}, year = {2026}, eprint = {2601.20439}, archivePrefix = {arXiv}, url = {https://arxiv.org/abs/2601.20439}, }