Grounding or Guessing? Visual Signals for Detecting Hallucinations in Sign Language Translation 事件

Grounding or Guessing? Visual Signals for Detecting Hallucinations in Sign Language Translation arXiv:2510.18439v3 Announce Type: replace Abstract: Hallucination, where models generate fluent text unsupported by visual evidence, remains a major flaw in vision-language models and is particularly critical in sign language translation (SLT). In SLT, meaning depends on precise grounding in video, and gloss-free models are especially vulnerable because they map continuous signer movements directly i