Natural Language Processing NLP is a sub field of Artificial Intelligence linguistics and computer science and is concerned with the generation recognition and understanding of human languages both written and spoken NLP systems examine the grammatical structure of sentences as well as the specific meanings of words and then they utilize algorithms to extract meaning and produce results Machine Learning and Deep Learning in Natural Language Processing aims at providing a review of current Neural Network techniques in the NLP field in particular about Conversational Agents chatbots Text to Speech management of non literal content like emotions but also satirical expressions and applications in the healthcare field Natural Language Processing NLP is a sub field of Computer Science information engineering and Artificial Intelligence AI that deals with the computational processing and comprehension of human languages Machine Learning ML for NLP and text analytics involves a set of statistical techniques for identifying parts of speech named entities sentiments emotions and other aspects of text ML is a subset of AI which deals with the study of algorithms and statistical methods that computer systems use to effectively perform a specific task ML does this without using explicit instructions relying on patterns and learns from the dataset to make predictions or decisions ML algorithms are classified into supervised semi supervised active learning reinforcement and unsupervised learning NLP has the potential to be a disruptive technology in various healthcare fields but so far little attention has been devoted to that goal This book aims at providing some examples of NLP techniques that can for example restore speech detect Parkinson s disease or help psychotherapists This book is intended for a wide audience Beginners will find useful chapters providing a general introduction to NLP techniques while experienced professionals will appreciate the chapters about advanced management of emotion empathy and non literal content