Hanqi Wu

Hallucinations Leave a Grounding Signature:Verifier-Guided Decoding for Selective Object Correction

Verifier-Guided Decoding (VGD), a decoding framework in which a lightweight verifier examines each emerging object mention, rolls back the KV cache when the mention is identified as high risk, suppresses the object and its synonyms, and regenerates the affected continuation, achieves state-of-the-art object hallucination reduction.