Sign In Start Free Trial
Account

Add to playlist

Create a Playlist

Modal Close icon
You need to login to use this feature.
  • Natural Language Processing with Java
  • Toc
  • feedback
Natural Language Processing with Java

Natural Language Processing with Java

By : Richard M. Reese
2 (3)
close
Natural Language Processing with Java

Natural Language Processing with Java

2 (3)
By: Richard M. Reese

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)
close

Vector space model


Boolean retrieval works fine, but it only gives output in binary; it says the term matches or is not in the document, which works well if there are only a limited number of documents. If the number of documents increases, the results generated are difficult for humans to follow. Consider a search term, X is searched for in 1 million documents, out of which half return positive results. The next phase is to order the documents on some basis, such as rank or some other mechanism, to show the results.

If the rank is required, then the document needs to attach some kind of score, which is given by a search engine. For a normal user, writing a Boolean query itself is a difficult task, where they have to make a query using and, or, and not. In real-time, the queries can be simple as single words query and as complex as a sentence containing lots of words.

The vector space model can be divided into three stages:

  • Document indexing, where the terms are extracted from the documents...

Unlock full access

Continue reading for free

A Packt free trial gives you instant online access to our library of over 7000 practical eBooks and videos, constantly updated with the latest in tech
bookmark search playlist font-size

Change the font size

margin-width

Change margin width

day-mode

Change background colour

Close icon Search
Country selected

Close icon Your notes and bookmarks

Delete Bookmark

Modal Close icon
Are you sure you want to delete it?
Cancel
Yes, Delete