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Deep Q-learning(DQN) – Experience Replay

On: July 19, 2019

In: AI, Deep Machine Learning, Reinforcement Learning

To perform experience replay we store the agent’s experiences et=(st,at,rt,st+1) Then we use a random sample of these prior actions instead of the most recent action to proceed. * This removes correlations in the observation sequence and smooths changes in the data distribution. * Iterative update adjusts Q towards targetContinue Reading

Likelihood function

On: July 5, 2019

In: Math, Science, Statistics

Expresses how likely particular values of statistics or a random variables are for a given set of observations. Indexes the family of joint probability distribution of the random sample evaluated at the given observations.Continue Reading