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Java Data Science Cookbook

You're reading from   Java Data Science Cookbook Explore the power of MLlib, DL4j, Weka, and more

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Product type Paperback
Published in Mar 2017
Publisher Packt
ISBN-13 9781787122536
Length 372 pages
Edition 1st Edition
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Author (1):
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Rushdi Shams Rushdi Shams
Author Profile Icon Rushdi Shams
Rushdi Shams
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Toc

Table of Contents (10) Chapters Close

Preface 1. Obtaining and Cleaning Data FREE CHAPTER 2. Indexing and Searching Data 3. Analyzing Data Statistically 4. Learning from Data - Part 1 5. Learning from Data - Part 2 6. Retrieving Information from Text Data 7. Handling Big Data 8. Learn Deeply from Data 9. Visualizing Data

Creating a Word2vec neural net using Deep Learning for Java (DL4j)


Word2vec can be seen as a two-layer neural net that works with natural text. With its typical usage, the input for the algorithm can be a text corpus, and its output is a set of feature vectors for words in that corpus. Note that Word2vec is not, strictly speaking, a deep neural network as it translates text into a numerical form that deep neural nets can read and understand. In this recipe, we will see how we can use the popular deep learning Java library named deep learning for Java (from this point on, DL4j) to apply Word2vec to raw text.

How to do it...

  1. Create a class named Word2VecRawTextExample:

            public class Word2VecRawTextExample { 
    
  2. Create a logger for this class. The logger facility has already been included in your project, as you have used Maven to build your project:

            private static Logger log = 
              LoggerFactory.getLogger(Word2VecRawTextExample.class); 
    
  3. Start creating your main...

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