Yunhun Nam

Vision-driven Preference Synthesis for Mitigating Hallucinations in VLMs

ViPSy (Vision-driven Preference Synthesis), a framework for constructing preference data that are both policy-aligned and visually grounded, is proposed, and experiments show that the resulting VLM, preference-aligned with ViPSy-constructed preference pairs, achieves a new state-of-the-art in hallucination mitigation.