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Dynamics-Aware Unsupervised Discovery of Skills

ICLR 2020 · Reinforcement learning › Visual and representation RL · approach: Hierarchical skills and priors · 70 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Use DADS skills with latent-space MPPI instead of standard model-based RLAnt navigation · Ant navigation to goalsnormalized average distance to goal (Δ)Helped
Use DADS skills with latent-space MPPI instead of goal-conditioned RLAnt navigation · Dense-reward Ant navigationnavigation performanceMixed
Use DADS skills with latent-space MPPI instead of goal-conditioned RLAnt navigation · Sparse-reward Ant navigationnavigation performanceHelped
Learn primitives with DADS predictability-and-diversity objective instead of DIAYN diversity objectiveAnt navigation skills · Ant x-y trajectory variancetrajectory varianceHelped
Learn primitives with DADS instead of DIAYNHierarchical Ant navigation · Ant navigation to goalsnavigation performanceHelped
Use continuous primitives instead of discrete primitives (ablation)DADS · Ant navigationplanning performanceHelped
Add an x-y prior to DADS skill-dynamics (ablation)DADS Ant skills · Ant x-y trajectoriesskill varianceHelped
Remove the x-y prior from DADS (ablation)DADS Ant skills · Ant skill-dynamics predictionprediction error growthHurt
Resample the skill at every timestep instead of keeping it temporally extended (ablation)DADS · Unsupervised skill discoveryskill learning qualityHurt

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