Aux-Think: Exploring Reasoning Strategies for Data-Efficient Vision-Language Navigation - Wang, Shuo; Wang, Yongcai; Li, Wanting; Cai, Xudong; Wang, Yucheng; Chen, Maiyue; kaihui.wang; Su, Zhizhong; Li, Deying; Fan, Zhaoxin (Advances in Neural Information Processing Systems, 2025)