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Understanding Self-Predictive Learning for Reinforcement Learning

ICML 2023 · Probabilistic and scientific modeling › Dynamical systems · approach: Latent dynamics models · 1 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Use faster-paced (near-optimal) prediction matrix P_t together with semi-gradient updates on Phi (ablation)Self-predictive learning (single representation) · Random tabular MDPs (k=2)cosine similarity between representation columns (collapse indicator)Helped
Replace semi-gradient with full gradient on Phi (no stop-gradient on target) (ablation)Self-predictive learning · Random tabular MDPs (k=2)column collapse (cosine similarity)Hurt
Corrupt the optimal predictor with zero-mean noise each iteration (ablation)Self-predictive learning · Random tabular MDPs (k=2)column collapse (cosine similarity)Hurt
Use symmetric transition matrix P^pi (vs non-symmetric)Self-predictive learning trace objective · 100 random tabular MDPs, exact ODEtrace objective improvement over timeHelped
Bidirectional (forward+backward) self-predictive learning instead of single representation (ablation)Self-predictive learning on 3-state transition matrix example · Tabular MDP with asymmetric singular vectorsSVD trace objective ratio to top-k valueHelped
Add backward latent self-prediction to BYOL-RL (deep bidirectional self-predictive learning)BYOL-RL on DMLab-30 · DMLab-30 multi-taskmean human normalized scoreNo clear effect
Add backward prediction to BYOL-RLBYOL-RL on DMLab-30 per-game · DMLab-30 multi-taskper-game human normalized score gain: up to about 0.4 gain on some tasksMixed

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