Limit search to available items
Book Cover
E-book
Author Balakrishnan, Kaushik

Title TensorFlow Reinforcement Learning Quick Start Guide : Get up and Running with Training and Deploying Intelligent, Self-Learning Agents Using Python
Published Birmingham : Packt Publishing Ltd, 2019

Copies

Description 1 online resource (175 pages)
Contents Cover; Title Page; Copyright and Credits; Dedication; About Packt; Contributors; Table of Contents; Preface; Chapter 1: Up and Running with Reinforcement Learning; Why RL?; Formulating the RL problem; The relationship between an agent and its environment; Defining the states of the agent; Defining the actions of the agent; Understanding policy, value, and advantage functions; Identifying episodes; Identifying reward functions and the concept of discounted rewards; Rewards; Learning the Markov decision process ; Defining the Bellman equation; On-policy versus off-policy learning
On-policy methodOff-policy method; Model-free and model-based training; Algorithms covered in this book; Summary; Questions; Further reading; Chapter 2: Temporal Difference, SARSA, and Q-Learning; Technical requirements; Understanding TD learning; Relation between the value functions and state; Understanding SARSA and Q-Learning ; Learning SARSA ; Understanding Q-learning; Cliff walking and grid world problems; Cliff walking with SARSA; Cliff walking with Q-learning; Grid world with SARSA; Summary; Further reading; Chapter 3: Deep Q-Network; Technical requirements
Learning the theory behind a DQNUnderstanding target networks; Learning about replay buffer; Getting introduced to the Atari environment; Summary of Atari games; Pong; Breakout; Space Invaders; LunarLander; The Arcade Learning Environment ; Coding a DQN in TensorFlow; Using the model.py file; Using the funcs.py file; Using the dqn.py file; Evaluating the performance of the DQN on Atari Breakout; Summary; Questions; Further reading; Chapter 4: Double DQN, Dueling Architectures, and Rainbow; Technical requirements; Understanding Double DQN ; Coding DDQN and training to play Atari Breakout
Evaluating the performance of DDQN on Atari BreakoutUnderstanding dueling network architectures; Coding dueling network architecture and training it to play Atari Breakout; Combining V and A to obtain Q; Evaluating the performance of dueling architectures on Atari Breakout ; Understanding Rainbow networks; DQN improvements; Prioritized experience replay ; Multi-step learning; Distributional RL; Noisy nets; Running a Rainbow network on Dopamine; Rainbow using Dopamine; Summary; Questions; Further reading; Chapter 5: Deep Deterministic Policy Gradient; Technical requirements
Actor-Critic algorithms and policy gradientsPolicy gradient; Deep Deterministic Policy Gradient; Coding ddpg.py; Coding AandC.py; Coding TrainOrTest.py; Coding replay_buffer.py; Training and testing the DDPG on Pendulum-v0; Summary; Questions; Further reading; Chapter 6: Asynchronous Methods -- A3C and A2C; Technical requirements; The A3C algorithm; Loss functions; CartPole and LunarLander; CartPole; LunarLander; The A3C algorithm applied to CartPole; Coding cartpole.py; Coding a3c.py; The AC class; The Worker() class; Coding utils.py; Training on CartPole
Summary This book is an essential guide for anyone interested in Reinforcement Learning. The book provides an actionable reference for Reinforcement Learning algorithms and their applications using TensorFlow and Python. It will help readers leverage the power of algorithms such as Deep Q-Network (DQN), Deep Deterministic Policy Gradients (DDPG), and ..
Notes The A3C algorithm applied to LunarLander
Bibliography Includes bibliographical references
Notes Print version record
Subject Python (Computer program language)
Artificial intelligence.
Machine learning.
artificial intelligence.
Database design & theory.
Mathematical theory of computation.
Machine learning.
Information architecture.
Artificial intelligence.
Computers -- Machine Theory.
Computers -- Data Modeling & Design.
Computers -- Intelligence (AI) & Semantics.
Artificial intelligence
Machine learning
Python (Computer program language)
Form Electronic book
ISBN 1789533449
9781789533446