Author

Cong Xu

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#computer vision Preprint Aug 2026

Free the Language Model From the Vision Encoder: Semantic Serialization as a Perception Interface for Small Language Models

An embodied scene question-answering (QA) interface in which vision never enters the language model is studied, showing the gain survives paraphrase, attributing it to decision-aligned computation rather than answer-string leakage, while novel judgment vocabularies bound its scope.

Cong Xu, Ravi Sankar · 1 citation

Preprint Aug 2026

Evidence of Absence: Cross-Modal Abductive Risk Perception to Sustain World Models When Vision Fails

A structured world-state (entities, relations, context, and predictive cues) is designed to preserve prediction-critical content when perception degrades, but it presumes observations to populate it; when the primary visual modality is occluded or degraded, those observations may be missing. We address how to sustain t...

Cong Xu, Ravi Sankar · 1 citation