Research map / Continual learning / Online and replay-based
Disentangling Transfer in Continual Reinforcement Learning
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Measured effects reported in the paper
| What was changed | Where | Measured | Effect |
|---|---|---|---|
| carry over the critic from the previous task (ablation) | SAC · CW10 task pairs | forward transfer: 0.20 | Helped |
| carry over the actor from the previous task (ablation) | SAC · CW10 task pairs | forward transfer: 0.06 | Helped |
| carry over the exploration policy (ablation) | SAC · CW10 task pairs | forward transfer: 0.09 | Helped |
| freeze critic body and train only head (ablation) | SAC critic · CW10 task pairs | forward transfer: -1.29 | Hurt |
| carry over actor, critic and exploration together vs separately (ablation) | SAC · CW10 task pairs | forward transfer: 0.35 | Helped |
| carry over the optimizer statistics (ablation) | SAC · CW10 task pairs | forward transfer: 0.02 | No clear effect |
| longer exploration phase (50000 steps vs 5000) when carrying over exploration only (ablation) | SAC · CW10 task pairs | forward transfer: 0.13 -> -0.00 | Hurt |
| add uniform-previous exploration to EWC (ablation) | EWC · CW10 | average performance: 0.63 -> 0.72 | Helped |
| add best-return exploration to EWC (ablation) | EWC · CW20 | forward transfer: -0.14 -> 0.28 | Helped |
| add informed exploration strategies to PackNet (ablation) | PackNet · CW10 | forward transfer: 0.26 -> 0.23 | No clear effect |
| add behavioral cloning of the actor vs Perfect memory/BC of actor and critic in two-task transfer (ablation) | SAC · CW10 task pairs | forward transfer: 0.01; -0.56 | Mixed |
| replace Perfect memory with actor behavioral cloning on long sequences (ablation) | SAC · CW10 | forward transfer: -1.13 -> 0.41 | Helped |
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