Authors

Yezhou Yang

Publications 2

Preprint Open access

Where Hallucinations Live: A Cross-Architecture Circuit in VQ-Tokenized Vision-Language Models

Unified vision-language models (VLMs) that tokenize images through a vector-quantized (VQ) codebook routinely hallucinate objects on grounded yes/no benchmarks, yet existing decoding-time fixes treat this as generic miscalibration without an architectural account. Using activation patching across twenty-five models spa …

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