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Can Bad Teaching Induce Forgetting? Unlearning in Deep Networks Using an Incompetent Teacher
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Measured effects reported in the paper
| What was changed | Where | Measured | Effect |
|---|---|---|---|
| Use competent and incompetent teachers to selectively transfer retain and forget information | ResNet18 unlearning · CIFARSuper20, Rocket forgotten | D_f accuracy: 82 -> 2±0.40 | Helped |
| Use competent and incompetent teachers to selectively transfer retain and forget information | ResNet18 unlearning · CIFARSuper20, Rocket forgotten | D_r accuracy: 85.78 -> 85.05±0.61 | No clear effect |
| Use competent and incompetent teachers to selectively transfer retain and forget information | ResNet18 unlearning · CIFARSuper20, Rocket forgotten | ZRF: 0.87 -> 0.99 | Helped |
| Replace ResNet34 incompetent teacher with ResNet18 (ablation) | Competent/incompetent teacher unlearning · CIFARSuper20, Rocket forgotten | D_f accuracy: 1 -> 15 | Mixed |
| Replace ResNet34 incompetent teacher with a random predictor (ablation) | Competent/incompetent teacher unlearning · CIFARSuper20, Rocket forgotten | D_f accuracy: 1 -> 5 | Mixed |
| Replace a randomly initialized teacher with a partially trained teacher (ablation) | Competent/incompetent teacher unlearning · CIFARSuper20, Rocket forgotten | JS-Divergence: 0.04 -> 0.02 | Helped |
| Increase retain data used from 50% to 100% (ablation) | LSTM unlearning · Human Activity Recognition, Person 1 forgotten, 1 epoch | ZRF: 0.69 -> 0.79 | Helped |
| Increase unlearning epochs from 1 to 5 (ablation) | LSTM unlearning · Human Activity Recognition, Person 1 forgotten, 10% retain data | ZRF: 0.62 -> 0.75 | Helped |
| Increase learning rate from 0.0001 to 0.1 (ablation) | LSTM unlearning · Human Activity Recognition, Person 1 forgotten, 2 epochs and 30% retain data | ZRF: 0.59 -> 0.96 | Helped |
| Use a partially trained incompetent teacher instead of a randomly initialized teacher (ablation) | Class-level unlearning · CIFAR10, one class forgotten | D_f accuracy: 4.22 -> 0 | Helped |
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