Entropy Regularization is a type of regularization used in reinforcement learning. For on-policy policy gradient based methods like A3C, the same mutual reinforcement behaviour leads to a highly-peaked $\pi\left(a\mid{s}\right)$ towards a few actions or action sequences, since it is easier for the actor and critic to overoptimise to a small portion of the environment. To reduce this problem, entropy regularization adds an entropy term to the loss to promote action diversity:
$$H(X) = -\sum\pi\left(x\right)\log\left(\pi\left(x\right)\right) $$
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Source: Asynchronous Methods for Deep Reinforcement LearningPaper | Code | Results | Date | Stars |
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Task | Papers | Share |
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Reinforcement Learning (RL) | 147 | 17.84% |
Autonomous Driving | 111 | 13.47% |
Autonomous Vehicles | 43 | 5.22% |
Imitation Learning | 33 | 4.00% |
Decision Making | 28 | 3.40% |
Object Detection | 25 | 3.03% |
Semantic Segmentation | 19 | 2.31% |
Continuous Control | 16 | 1.94% |
Language Modelling | 13 | 1.58% |
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