Nullu projects a vision-language model's weights into the null space of a subspace learned from truthful versus hallucinated captions, reducing object hallucinations without extra inference cost.
Let there be a clock on the beach: Reducing object halluci- nation in image captioning
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Nullu: Mitigating Object Hallucinations in Large Vision-Language Models via HalluSpace Projection
Nullu projects a vision-language model's weights into the null space of a subspace learned from truthful versus hallucinated captions, reducing object hallucinations without extra inference cost.