Ridge regression / Bootstrap ridge regression

anchor

Linear regression with an L2 penalty. As a probe it tests whether a target is recoverable by a linear read-out of the representation.

Findings

• IC-666DINOv2, CLIP-vision, and VGG-19 representations all align with MEG brain responses, with DINOv2 showing particularly high retrieval performance for late brain activity after image offset [compared-to]
• TM-006Coordinates are recoverable from TerraMind's frozen features, latitude more accurately than longitude [primary]
• TM-007Coordinates are linearly decodable only in the larger TerraMind variants [primary]