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Exploration by Maximizing Renyi Entropy for Reward-Free RL Framework

AAAI 2021 · Reinforcement learning › Visual and representation RL · approach: Novelty and impact-driven exploration · 21 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
maximize state-action Rnyi entropy instead of state entropy with an entropy bonus (ablation)MaxRenyi · MultiRoomslowest normalized cumulative reward: State + bonus: 0.14, 0.48, 0.78, 0.87; MaxRenyi: 0.14, 0.52, 0.87, 0.91Helped
add an entropy bonus to state-entropy exploration (ablation)State · MultiRoomslowest normalized cumulative reward: State: 0.07, 0.15, 0.41, 0.57; State + bonus: 0.14, 0.48, 0.78, 0.87Helped
use PPO with a value function instead of vanilla policy gradient (ablation)MaxRenyi · MultiRooms explorationnumber of unique state-action pairs visitedHelped
use alpha=0.5 rather than alpha=1 (ablation)MaxRenyi · MultiRooms explorationnumber of unique state-action pairs visitedHelped
use alpha=0 rather than alpha=0.5 (ablation)MaxRenyi · MultiRooms explorationnumber of unique state-action pairs visitedHurt
use MaxRenyi exploration rather than RND, ICM, or MaxEntreward-free RL · MultiRooms (planning phase)sample count needed for normalized cumulative reward larger than 0.8: 8k samples; 16k samplesHelped
use MaxRenyi exploration rather than RNDreward-free RL · Gravitarplanned policy score: 1,850 vs 1,890Hurt
use MaxRenyi exploration rather than RNDreward-free RL · Atari and Mujoco planning tasksplanned policy score: Montezuma 8,100 vs 4,740; Venture 900 vs 840; Gravitar 1,850 vs 1,890; PrivateEye 6,820 vs 3,040; Solaris 2,192 vs 1,416Mixed

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