The Look of a Lie: Chart-Deception Probes on Vision-Language Model Activations Read Distortion Geometry and Are Mechanism-Bound
Deception probes on language models answer a binary question: is this response deceptive? Charts allow a graded one, because a chart rendered from its own distortion parameters has an exact Tufte Lie Factor. We render 1,685 charts from real statistical series under parameterised distortions and train linear probes on t...