How do you know when Q-Learning converges?

How do you know when Q-Learning converges?

In practice, a reinforcement learning algorithm is considered to converge when the learning curve gets flat and no longer increases. However, other elements should be taken into account since it depends on your use case and your setup. In theory, Q-Learning has been proven to converge towards the optimal solution.

What is Q-Learning show its working with the help of algorithm?

Q-Learning is a value-based reinforcement learning algorithm which is used to find the optimal action-selection policy using a Q function. Our goal is to maximize the value function Q. The Q table helps us to find the best action for each state. Initially we explore the environment and update the Q-Table.

What do you mean by convergence of algorithm?

Specifically, convergence of an algorithm. The algorithm is represented as the point-to-set map, , where there is some selection function to choose if has more than one member. Convergence means that the sequence, , has a limit point, say , such that satisfies certain conditions.

Is there proof that Q-learning converges when using function?

A complete proof that shows that Q -learning finds the optimal Q function can be found in the paper Convergence of Q-learning: A Simple Proof (by Francisco S. Melo).

Which is an example of a Q-learning algorithm?

The Q-learning algorithm iteratively updates the Q-values for each state-action pair using the Bellman equation until the Q-function converges to the optimal Q-function, q ∗. This approach is called value iteration. To see exactly how this happens, let’s set up an example, appropriately called The Lizard Game .

What is the goal of Q-learning in reinforcement learning?

The objective of Q-learning is to find a policy that is optimal in the sense that the expected value of the total reward over all successive steps is the maximum achievable. So, in other words, the goal of Q-learning is to find the optimal policy by learning the optimal Q-values for each state-action pair.