Book Image

Natural Language Processing with Java Cookbook

By : Richard M. Reese
Book Image

Natural Language Processing with Java Cookbook

By: Richard M. Reese

Overview of this book

Natural Language Processing (NLP) has become one of the prime technologies for processing very large amounts of unstructured data from disparate information sources. This book includes a wide set of recipes and quick methods that solve challenges in text syntax, semantics, and speech tasks. At the beginning of the book, you'll learn important NLP techniques, such as identifying parts of speech, tagging words, and analyzing word semantics. You will learn how to perform lexical analysis and use machine learning techniques to speed up NLP operations. With independent recipes, you will explore techniques for customizing your existing NLP engines/models using Java libraries such as OpenNLP and the Stanford NLP library. You will also learn how to use NLP processing features from cloud-based sources, including Google and Amazon Web Services (AWS). You will master core tasks, such as stemming, lemmatization, part-of-speech tagging, and named entity recognition. You will also learn about sentiment analysis, semantic text similarity, language identification, machine translation, and text summarization. By the end of this book, you will be ready to become a professional NLP expert using a problem-solution approach to analyze any sort of text, sentence, or semantic word.
Table of Contents (14 chapters)

Using the Google NLP API to parse text

In this recipe, we will use the Google NLP API to parse text. However, we can graphically display the tree. Using your browser, go to https://cloud.google.com/natural-language/. Near the bottom of the page, you will find a field labelled Try the API. Enter the string, He walked to the store. Next, press the ANALYZE button. Select the Syntax tab below the text field. You will see the parse tree as shown next:

Getting ready

To prepare, we need to do the following:

  1. Setup the GCP service and API key according to the recipe Getting ready to use the Google Cloud Platform in the Appendix, Installation and Configuration.

  2. Create a new Maven project

  3. Add the following dependencies to the POM...