Experiment: Entangled-object unlearning (Pivot A)
Task: Forget "milk" (T5) while retaining visually near-identical "orange juice" (T0) on LIBERO-Object
Method: GA (Gradient Ascent)
Base model: pi0.5 (3.35B params, flow matching)
Results
Metric
Value
HM
0.37
Forget SR (milk)
20%
Retain SR
24.4%
OJ SR (visual neighbor)
40%
Context
This checkpoint is from the entangled-object forgetting experiment, which tests
whether unlearning can distinguish between visually near-identical objects (milk and
orange juice are both rectangular cartons of similar size).
Unlike the butter experiment
where the forget target was geometrically unique, this experiment deliberately uses
the hardest visual discrimination case in the dataset.
