Papers › Empowerment-driven Exploration using Mutual Information Estimation

Empowerment-driven Exploration using Mutual Information Estimation

11 Oct 2018arXiv:1810.05533archive 2025-07-28

Navneet Madhu Kumar

Exploration is a difficult challenge in reinforcement learning and is of prime importance in sparse reward environments. However, many of the state of the art deep reinforcement learning algorithms, that rely on epsilon-greedy, fail on these environments. In such cases, empowerment can serve as an intrinsic reward signal to enable the agent to maximize the influence it has over the near future. We formulate empowerment as the channel capacity between states and actions and is calculated by estimating the mutual information between the actions and the following states. The mutual information is estimated using Mutual Information Neural Estimator and a forward dynamics model. We demonstrate that an empowerment driven agent is able to improve significantly the score of a baseline DQN agent on the game of Montezuma's Revenge.

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navneet-nmk/pytorch-rl officialmentioned in paperpytorch report

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Deep Reinforcement Learning Montezuma's Revenge Mutual Information Estimation Reinforcement Learning Reinforcement Learning (RL)reinforcement-learning

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Methods

Convolution DQN Dense Connections Q-Learning

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