Book Image

Mastering Natural Language Processing with Python

By : Deepti Chopra, Nisheeth Joshi, Iti Mathur
Book Image

Mastering Natural Language Processing with Python

By: Deepti Chopra, Nisheeth Joshi, Iti Mathur

Overview of this book

<p>Natural Language Processing is one of the fields of computational linguistics and artificial intelligence that is concerned with human-computer interaction. It provides a seamless interaction between computers and human beings and gives computers the ability to understand human speech with the help of machine learning.</p> <p>This book will give you expertise on how to employ various NLP tasks in Python, giving you an insight into the best practices when designing and building NLP-based applications using Python. It will help you become an expert in no time and assist you in creating your own NLP projects using NLTK.</p> <p>You will sequentially be guided through applying machine learning tools to develop various models. We’ll give you clarity on how to create training data and how to implement major NLP applications such as Named Entity Recognition, Question Answering System, Discourse Analysis, Transliteration, Word Sense disambiguation, Information Retrieval, Sentiment Analysis, Text Summarization, and Anaphora Resolution.</p>
Table of Contents (17 chapters)
Mastering Natural Language Processing with Python
Credits
About the Authors
About the Reviewer
www.PacktPub.com
Preface
Index

Applying metropolis hastings in modeling languages


There are various ways to perform processing on posterior distribution in Markov Chain Monte Carlo (MCMC). One way is using the Metropolis-Hastings sampler. In order to implement the Metropolis-Hastings algorithm, we require standard uniform distribution, proposal distribution, and target distribution that is proportional to posterior probability. An example of Metropolis-Hastings is discussed in the following topic.