Artificial Intelligence #synthetic ood generation#robust refusal
Semantic Flip: Synthetic OOD Generation for Robust Refusal in Embodied Question Answering and Spatial Localization
The Semantic Flip framework trains a lightweight rejection module on top of frozen vision-language models to detect unanswerable queries in embodied question answering and spatial localization. It synthesizes out-of-distribution pairs by transforming query and video memory, achieving high refusal accuracy without external OOD annotations.
Jun 16, 2026 1 source