دانلود کتاب شروع با پردازش زبان طبیعی

Natural Language Processing (or NLP) is a field that addresses various approaches in which computers can deal with natural, that is human, language. Regardless of your occupation or background, there is a good chance you have heard about it before, especially in the recent years when the news about the impressive capabilities of intelligent machines that can understand and produce natural language have started appearing in media. This is what has brought NLP into the spotlight, and what might have attracted you to this book. You might be a programmer who would like to learn new skills, a machine learning or data science practitioner who realized there is a lot of potential in processing natural language, or you might be generally interested in how language works and how to process it automatically. Either way, welcome to NLP! This book aims to help you get started with it. Is this book for you if you don’t quite know or understand yet what NLP means and does? Absolutely! You might have not realized that, but you are already familiar with this application area and the tasks it addresses – in fact, anyone who speaks, reads or writes in a human language is. What is more, we use language every time we think, plan and dream. So just think about the following for a moment: almost any task that you perform on the daily basis involves some use of language. Language ability is one of the core aspects of human intelligence, and there is no wonder that the recent advances in Artificial Intelligence and excitement about the new, more capable intelligent technology involve advances in Natural Language Processing to a considerable degree. After all, we cannot really say that a machine is truly intelligent if it cannot master human language. Ok, that sounds exciting, but how useful is it as an actual skill for your everyday work or your own projects? The answer is: if your work includes dealing with any type of textual information, and that involves any work-related documents, legal or financial documents, websites, emails, etc., you will with absolute certainty benefit from learning how to extract the key information from such documents and how to process it. Textual data is ubiquitous, and there is a huge potential in being able to reliably extract information from large amounts of text, as well as in being able to learn from it – as the saying goes, data is the new oil!1 This book will cover the core topics in NLP, and I hope it will be of a great help in your everyday work as well as in your projects, whichever background you are coming from and whatever primary interest in this field you have. What is even more important than the arguments of utility and potential is that NLP is interesting, intellectually stimulating and fun! And remember that as a natural language speaker, you are already an expert in many of the tasks that NLP addresses, so it is one of those areas in which one can get started easily. This book is written with the lowest entry barrier to learning possible: you don’t need to have any prior knowledge about how language works – the book will walk you through the core concepts and techniques starting from the very beginning. All you need at the beginning is some basic programming skills in Python and basic understanding of mathematical notation, but what you will learn by the end of this book is a whole set of NLP skills and techniques. Let’s begin!