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Reinforcement Learning with TensorFlow

Reinforcement Learning with TensorFlow

By : Dutta
2.2 (5)
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Reinforcement Learning with TensorFlow

Reinforcement Learning with TensorFlow

2.2 (5)
By: Dutta

Overview of this book

Reinforcement learning (RL) allows you to develop smart, quick and self-learning systems in your business surroundings. It's an effective method for training learning agents and solving a variety of problems in Artificial Intelligence - from games, self-driving cars and robots, to enterprise applications such as data center energy saving (cooling data centers) and smart warehousing solutions. The book covers major advancements and successes achieved in deep reinforcement learning by synergizing deep neural network architectures with reinforcement learning. You'll also be introduced to the concept of reinforcement learning, its advantages and the reasons why it's gaining so much popularity. You'll explore MDPs, Monte Carlo tree searches, dynamic programming such as policy and value iteration, and temporal difference learning such as Q-learning and SARSA. You will use TensorFlow and OpenAI Gym to build simple neural network models that learn from their own actions. You will also see how reinforcement learning algorithms play a role in games, image processing and NLP. By the end of this book, you will have gained a firm understanding of what reinforcement learning is and understand how to put your knowledge to practical use by leveraging the power of TensorFlow and OpenAI Gym.
Table of Contents (17 chapters)
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Scoring mechanism in sequential models in NLP

Two scoring mechanisms were used to evaluate the approaches mentioned in Chapter 14Deep Reinforcement Learning in NLP, as follows:

BLEU

One of the biggest challenges in sequential models in NLP used in machine translation, text summarization, image captioning, and much more is an adequate metric for evaluation.

Suppose your use case is machine translation; you have a German phrase and there are multiple English translations of it. All of them look equally good. So, how do you evaluate a machine translation system if there are multiple equally good answers? This is unlike image recognition, where the target has only one right answer and not multiple, equally good right...

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