Reinforcement learning with verifiable rewards (RLVR) provides a natural framework for adapting pretrained models to video temporal grounding, where generated temporal intervals can be scored directly against ground truth intervals. Yet existing overlap verifiers typically score each rollout independently, leaving the...
Youngjae Cho, Won Young Jhoo, Jongsuk Kim· 0 citations
Geometric Anchor Preference Optimization is proposed, which replaces the fixed reference with a dynamic, geometry-aware anchor: an adversarial local perturbation of the current policy within a small radius that serves as a pessimistic baseline that enables an adaptive reweighting mechanism, modulating the importance of...
Young-Seok Cho, Jongsuk Kim, Ji-hoon Kim· arXiv.org· 0 citations
Compared to prior CLIP-enhancement methods, MLLMCLIP achieves state-of-the-art compositional accuracy while delivering consistent gains on standard zero-shot classification and image-text retrieval, showing that feature-level distillation strengthens both compositional and general vision-language representation capabil...
Jongsuk Kim, Qi-Yu Wu, Zhuoyuan Mao et al.· 0 citations
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