Reinforcement Learning Intermediate
Q-function
In reinforcement learning, the function that predicts the expected return from taking an action in a state and then following a given policy.
Plain English Explanation
In reinforcement learning, the function that predicts the expected return from taking an action in a state and then following a given policy. Q-function is also known as state-action value function.
How is it used?
Practitioners refer to q-function when building, training, or evaluating machine learning systems. It appears in research papers, product documentation, and technical discussions about AI capabilities and limitations.