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Questions tagged [value-based-methods]

For questions about value-based reinforcement learning (RL) methods (or algorithms), which first learn a value function and then derive the policy from it. An example of a value-based RL algorithm is Q-learning.

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What kind of reinforcement learning method does AlphaGo Deepmind use to beat the best human Go player?

In reinforcement learning, there are model-based versus model-free methods. Within model-based ones, there are policy-based and value-based methods. AlphaGo Deepmind RL model has beaten the best Go ...
user781486's user avatar
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Is it possible to combine two policy-based RL agents?

I am developing an RL agent for a game environment. I have found out that there are two strategies to do well in the game. So I have trained two RL agents using neural networks with distinct reward ...
BlackBrain's user avatar
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What are the disadvantages of actor-only methods with respect to value-based ones?

While the advantages of actor-only algorithms, the ones that search directly the policy without the use of the value function, are clear (possibility of having a continuous action space, a stochastic ...
unter_983's user avatar
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Are policy-based methods better than value-based methods only for large action spaces?

In different books on reinforcement learning, policy-based methods are motivated by their ability to handle large (continuous) action spaces. Is this the only motivation for the policy-based methods? ...
tmaric's user avatar
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As someone starting out in RL, could you help me understand the differences between actor-only, critic-only, and actor-critic methods?

I have been reading some medium articles and these three methods pop up a lot. I am wondering what the differences between these are, what are the advantages of one over the other, etc. Also from my ...
No-Time-To-Day's user avatar