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MergeHEIR: Mitigating Multimodal Hallucinations as the Tax of Model Merging

Li, Jinyu et al.
arXiv (All) · Papers
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artificial-intelligence
Model merging consolidates task-specialized experts into a single deployable model. However, we show that such capability consolidation incurs a merging tax of increased hallucination: across 8 model-merging methods, every merged checkpoint exhibits a higher hallucination rate than the average of it
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