Rethinking CD: A Reproducibility Study and Extension on the Ineffectiveness of Contrastive Decoding at Mitigating Object Hallucinations in MLLMs
Reproduction and extension of contrastive decoding (CD) reveal its effects are mainly due to distribution shifts, not true hallucination mitigation, across multiple models and datasets.
Arnav Bendre, Guneesh Gupta, Kavish Grover et al.