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Mastering Visual Continuous Control: Improved Data-Augmented Reinforcement Learning

ICLR 2022 · Reinforcement learning › Policy gradient and actor-critic · approach: Off-policy actor-critic with expressive policies · 63 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
switch DrQ's SAC backbone to DDPG (ablation)DrQ · DMC hard tasksexploration and task performanceHelped
add 3-step returns (ablation)DDPG-based DrQ · DMC control taskssample efficiencyHelped
increase replay buffer capacity to 1M (ablation)DrQ-v2 · Reacher HardperformanceHelped
decay exploration noise linearly from 1.0 to 0.1 (ablation)DrQ-v2 · DMC tasks, especially HumanoidperformanceHelped
add bilinear interpolation to random-shift augmentation (ablation)DrQ-v2 · DMC tasksperformanceHelped
use mini-batch size 256 instead of 512 (ablation)DrQ-v2 · DMC tasksperformanceNo clear effect
lower the learning rate from 1×10⁻³ to 1×10⁻⁴ (ablation)DrQ-v2 · DMC taskslearning speed: 1×10⁻³ -> 1×10⁻⁴No clear effect
replace DrQ's random-crop augmentation with the custom grid_sample implementation (ablation)DrQ · DMC image augmentationtraining throughput: 2Helped
reimplement the replay buffer (ablation)DrQ · DMC image-based tasksstorage capacity: ten-foldHelped

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