Author

Hefei Li

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Efficient Frame Selection for Long Video Understanding via Reinforcement Learning

A lightweight frame selection method to identify keyframes and train it via a two-stage strategy that improves performance of diverse down-stream MLLMs across benchmarks spanning medium to long videos.

Yaxuan Qin, Hefei Li, Wenqi Mu et al. · 2 citations

Replay-free Sequential Fine-tuning of Medical VLMs

The streamlined, replay-free approach proves highly effective on a new continual learning benchmark and a practical path toward building prehensive, continually-learning medical VLMs and advancing the development of medical AI.

Hefei Li, Yuhui Zhang, Xiaohan Wang et al. · 0 citations