Deep Learning with JavaScript

Chapter 11. Basics of deep reinforcement learning

This chapter covers

• How reinforcement learning differs from the supervised learning discussed in the previous chapters
• The basic paradigm of reinforcement learning: agent, environment, action, and reward, and the interactions between them
• The general ideas behind two major approaches to solving reinforcement-learning problems: policy-based and value-based methods

Up to this point in this book, we have focused primarily on a type of machine learning called supervised learning. In supervised learning, we train a model to give us the correct answer given an input. Whether it’s assigning a class label to an input image (chapter 4) or predicting future temperature based on past weather data (