Determine the upper useful range of the IR threshold

Determine the upper edge of the useful range of the Invariance Radius (IR) threshold for screening LeWM checkpoints, which remains unresolved because 0.3 is the largest tested threshold value.

Background

The paper evaluates a joint IR–SR screening rule for identifying LeWM checkpoints that recover planning performance under Gaussian visual noise. The predominant rule accepts checkpoints when relative IR is at most 0.3 and the Separation Rate is at least 0.95. Because 0.3 is the maximum IR threshold examined in the tested grid, the experiments do not establish whether larger IR thresholds could still identify useful or recovered checkpoints.

References

Because $t_{\mathrm{IR}=0.3$ is the largest tested value, the upper edge of the useful range remains unresolved.

— Diagnosing JEPA World Models with Action-Conditioned Predictive Consistency  (2608.12939 - An et al., 13 Aug 2026) in Section 4.4, subsection “Checkpoint Screening across Tasks”