Author

Hanzhong Guo

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#machine learning May 2026

Overcoming Catastrophic Forgetting in Visual Continual Learning with Reinforcement Fine-Tuning

This work proposes Retention-aware Policy Optimization (RaPO), a simple yet effective RFT method that mitigates forgetting through trajectory-level reward shaping, and comprehensively evaluates RaPO across five visual continual learning settings.

Meng Lou, Hanzhong Guo, Linwei Chen et al. · arXiv.org · 2 citations

Jul 2026

CosFly-VLA: A Spatially Aware Vision-Language-Action Model for UAV Tracking

CosFly-VLA is presented, a spatially aware VLA model that jointly grounds the target, estimates its visibility, and generates continuous flight actions through a structured prediction interface and demonstrates progress from visible-frame imitation toward spatially grounded action-closed-loop control.

Ruilong Ren, Songsheng Cheng, Yunpeng Zhou et al. · arXiv.org · 1 citation