Tag Archives: Reinforcement Learning

Importance Sampling – A Tutorial

Problem: Compute an expectation over a probability density function , given only samples generated from a different probability density function . We call and the target distribution and proposal distribution respectively. Solution: Draw samples from Calculate the probability of each … Continue reading

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Use Simulated Annealing in command-line (MATLAB)

As you can see the first step is to set the options using the function saoptimset. And then use the main function easily. Notice that the Simulated Annealing can be used from Optimization Toolbox of the MATLAB directly.

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Rewards VS. Values (in the concept of Reinforcement Learning)

In the concept of Reinforcement Learning, we usually deal with two pretty similar keywords, reward and value, that can be confusing for beginners. In this brief post, I will mention the differences and actual definitions of these terms. Rewards are … Continue reading

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General Categorization of Machine Learning methods

There are three main branches of learning methods: 1-Supervised learning – These methods require labeled data to learn from. For instance given a 10000 images of cats and dogs which are labeled correctly by a supervisor, a machine learning approach … Continue reading

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Policy Function – definition

(An Introduction to Reinforcement Learning) – Part.1 Policy Function: defines action related to a state / maps any state to a related action. There are three kinds of Policies: 1- Stochastic Policy:   (probability – uses a transition function that … Continue reading

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