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Peng-Cheng Wen

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#natural language process... Preprint Jan 2026

Towards Multi-modal Multi-turn Safety: From Agentic Interaction to Strategic Alignment

This work introduces MINT-Safe, an open-source visual multi-turn training dataset comprising 11,270 multi-image dialogues and 500 refusal VQA pairs, and proposes TAD-Align, a dialogue safety alignment framework centered on a turn-aware dual-objective reward function.

Han Zhu, Jia-Le Chen, Chengkun Cai et al. · 0 citations
Conference Open access 2026

Omni-RewardBench: Toward a Comprehensive Evaluation of Generative Reward Models Across Modalities

Omni-RewardBench is introduced, the first benchmark for comprehensive evaluation of ORMs across modalities and demonstrates that current OLLMs fall short as reward models, revealing several common failure modes such as perception failure, modality dominance failure, and cross-modal fusion failure.

Chi-Min Chan, Yujin Zhou, Pengcheng Wen et al. · 0 citations

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