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Natural Language Processing with Java

Natural Language Processing with Java - Second Edition

By : Richard M. Reese, AshishSingh Bhatia
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Natural Language Processing with Java

Natural Language Processing with Java

2 (3)
By: Richard M. Reese, AshishSingh Bhatia

Overview of this book

Natural Language Processing (NLP) allows you to take any sentence and identify patterns, special names, company names, and more. The second edition of Natural Language Processing with Java teaches you how to perform language analysis with the help of Java libraries, while constantly gaining insights from the outcomes. You’ll start by understanding how NLP and its various concepts work. Having got to grips with the basics, you’ll explore important tools and libraries in Java for NLP, such as CoreNLP, OpenNLP, Neuroph, and Mallet. You’ll then start performing NLP on different inputs and tasks, such as tokenization, model training, parts-of-speech and parsing trees. You’ll learn about statistical machine translation, summarization, dialog systems, complex searches, supervised and unsupervised NLP, and more. By the end of this book, you’ll have learned more about NLP, neural networks, and various other trained models in Java for enhancing the performance of NLP applications.
Table of Contents (14 chapters)
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Using POI to extract text from Word documents


The Apache POI project (http://poi.apache.org/index.html) is an API used to extract information from Microsoft Office products. It is an extensive library that allows information extraction from Word documents and other office products, such as Excel and Outlook. When downloading the API for POI, you will also need to use XMLBeans (http://xmlbeans.apache.org/), which supports POI. The binaries for XMLBeans can be downloaded from http://www.java2s.com/Code/Jar/x/Downloadxmlbeans524jar.htm. Our interest is in demonstrating how to use POI to extract text from word documents.

To demonstrate this, we will use a file called TestDocument.docx, with some text, tables, and other stuff, as shown in the following screenshot (we have taken the English home page of Wikipedia):

There are several different file formats used by different versions of Word. To simplify the selection of which text extraction class to use, we will use the ExtractorFactory factory...

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