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Data-Efficient Reinforcement Learning with Self-Predictive Representations

ICLR 2021 · Reinforcement learning › Visual and representation RL · approach: Learned state and action representations · 47 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Add SPR future-prediction and augmentation objectivesData-Efficient Rainbow · Atari 100k, 26 gamesMedian Human-Norm'd: 0.268 -> 0.415Helped
Disable data augmentation (ablation)SPR · Atari 100k, 26 gamesMedian Human-Norm'd: 0.415 -> 0.307Hurt
Reduce future prediction depth to one step (ablation)SPR · Atari 100k, 26 gamesMean Human-Norm'd: 0.704 -> 0.570Hurt
Remove temporal prediction (ablation)SPR · Atari 100k, 26 gamesMean Human-Norm'd: 0.704 -> 0.507Hurt
Replace cosine similarity with unnormalized L2 loss (ablation)SPR · Atari 100k, 26 gamesMean Human-Norm'd: 0.704 -> 0.047Hurt
Remove projection and prediction networks (ablation)SPR · Atari 100k, 26 gamesMean Human-Norm'd: 0.704 -> 0.437Hurt
Allow gradients through online-encoder prediction targets (ablation)SPR with augmentation · Atari 100k, 26 gamesMedian Human-Norm'd: 0.415 -> 0.278Hurt
Add SPR to the controlled Rainbow implementation with augmentationRainbow (controlled, w/ aug.) · Atari 100k, 26 gamesMean Human-Norm'd: 0.480 -> 0.704Helped
Use multi-step latent prediction rather than a non-temporal objective (ablation)SPR · Atari 100k, 26 gamesMedian Human-Norm'd: 0.271 -> 0.415Helped

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