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Research map / Reinforcement learning / Visual and representation RL

Towards Generalization and Simplicity in Continuous Control

NeurIPS 2017 · Reinforcement learning › Visual and representation RL · approach: Skill learning and diffusion policies · 26 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Use an RBF policy instead of a neural-network policyContinuous-control policies · OpenAI Gym-v1 tasksreturnHelped
Use a linear policy instead of a neural-network policyContinuous-control policies · OpenAI Gym-v1 tasksreturnMixed
Use diverse initial states during trainingPolicies for modified control tasks · Modified tasksperturbation resistanceHelped
Train with a narrow initial-state distributionPolicies for control tasks · Standard benchmark tasksperturbation resistanceHurt
Increase the number of random Fourier features (ablation)RBF policy · Modified WalkerscoreHelped
Use an RBF policy rather than a linear policy (ablation)Policies trained on diverse initial states · Modified Walkerwalking efficiencyHelped
Use diverse initialization rather than peaked initialization (ablation)Policies evaluated under external perturbations · Modified swimmer, walker, and hopperdistance traveledHelped
Precondition policy-gradient updates with natural-gradient iterations (ablation)Natural policy gradient · Modified Walkerlearning progressHelped
Use an intermediate number of conjugate-gradient steps, such as 20 (ablation)Natural policy gradient · Large-scale control problemswall-clock performanceHelped
Use normalized rather than un-normalized step size (ablation)Natural policy gradient · Diverse swimmer, hopper, and walkerlearning stabilityHelped
Use GAE with λ=0.97 rather than a low-bias estimate (ablation)Policy-gradient advantage estimation · Continuous-control tasksinitial learning speedHelped
Use a higher-λ, lower-bias advantage estimate rather than λ=0.97 (ablation)Policy-gradient advantage estimation · Continuous-control tasksasymptotic performanceHelped

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