MullOverThings

Useful tips for everyday

# How do you find optimal value?

## How do you find optimal value?

Optimal Value (y=k) The optimal value is the highest or the lowest point on the parabola. The optimal value, also known as the vertex of the parabola would be maximum if only the parabola opens down words. One opening upwards has a minimum value. It “Y” coordinate of the vertex.

## How do you know if the optimal value is maximum or minimum?

Determine whether the function will have a minimum or a maximum depending on the coefficient of the x^2 term. If the x^2 coefficient is positive, the function has a minimum. If it is negative, the function has a maximum.

## Which is the optimal Q function in reinforcement learning?

The optimal Q-function Q* (s, a) means highest possible Q value for an agent starting from state s and choosing action a. There, Q* (s, a) is an indication for how good it is for an agent to pick action while being in state s.

## How does a value-based reinforcement learning algorithm work?

In a value-based approach, th e random value function is selected initially, then find new value function. This process repeated until it finds the optimal value function. The intuition here is the policy that follows the optimal value function will be optimal policy. Here, the policy is implicitly updated through value function.

## Which is the best way to use reinforcement learning in ML?

There are mainly three ways to implement reinforcement-learning in ML, which are: The value-based approach is about to find the optimal value function, which is the maximum value at a state under any policy. Therefore, the agent expects the long-term return at any state (s) under policy π.

## How is reinforcement learning different from supervised learning?

For each good action, the agent gets positive feedback, and for each bad action, the agent gets negative feedback or penalty. In Reinforcement Learning, the agent learns automatically using feedbacks without any labeled data, unlike supervised learning. Since there is no labeled data, so the agent is bound to learn by its experience only.