Contents
How are multiple time scales used to solve problems?
Multiple Time Scales presents various numerical methods for solving multiple-time-scale problems. The selection first elaborates on considerations on solving problems with multipl read full description
What is the target Q-value in dqns?
In a DQN, which uses off-policy learning, they represent a refined estimate for the expected future reward from taking an action a in state s, and from that point on following a target policy. The target policy in Q learning is based on always taking the maximising action in each state, according to current estimates of value.
What is the essence of multiple scale problems?
The essence of multiple-scale problems lies in the existence of distinguishable competing mechanisms, acting at disparate rates, and scales. In mathematical terms, one may say that for such problems the solution space may be decomposed into nearly orthogonal subspaces corresponding to distinguishable limits of the governing equations.
How is DQL different from Q-learning algorithms?
There are at least 3 differences between these two algorithms. DQL uses gradient descent because the Q function are represented by neural networks rather than tables, like in Q-learning, and so you have an explicit loss function (e.g. MSE). DQL encodes the states (i.e. ϕ encodes the states).
What do students learn in interactive physics simulations?
Engage students through an intuitive, game-like environment where students learn through exploration and discovery. Move the sun, earth, moon and space station to see how it affects their gravitational forces and orbital paths.
How many time and space scales does plasma have?
Plasma contains a multitude of distinct time and space scales that span many orders of magnitude. An example is illustrated with a range of four orders of magnitude in spatial scales and a range of 6–12 orders of magnitude in time scales.
What happens when physics.simulate is called 3000 times?
When left to run normally it comes to a stop quickly, when Physics.Simulate is used it will just keep on moving no matter however many times Physics.Simulate is called, even when called 3000 times to simulate 30s worth of time. There are no other scripts changing the behaviour or adding in other forces.