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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

Product type Paperback

Published in Mar 2017

Publisher Packt

ISBN-13 9781787122536

Length 372 pages

Edition 1st Edition

Languages

Java

Tools

Weka

Concepts

Data Analysis

Author (1):

Rushdi Shams

View More author details

Table of Contents (10) Chapters

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

Indexing data with Apache Lucene

In this recipe, we will demonstrate how to index a large amount of data with Apache Lucene. Indexing is the first step for searching data fast. In action, Lucene uses an inverted full-text index. In other words, it considers all documents, splits them into words or tokens, and then builds an index for each token so that it knows in advance exactly which document to look for if a term is searched.

Getting ready

The following are the steps to be implemented:

To download Apache Lucene, go to http://lucene.apache.org/core/downloads.html, and click on the Download button. At the time of writing, the latest version of Lucene was 6.4.1. Once you click on the Download button, it will take you to the mirror websites that host the distribution:
Choose any appropriate mirror for downloading. Once you click a mirror website, it will take you to a directory of distribution. Download the lucene-6.4.1.zip file onto your system:
Once you download it, unzip the...

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Authors (1)

Shams

Shams

Rushdi Shams has a Ph.D. on Application of machine learning in Natural Language Processing (NLP) problem areas from Western University, Canada. Before starting work as a machine learning and NLP specialist in the industry, he was engaged in teaching undergrad and grad courses. He has been successfully maintaining his YouTube channel named "Learn with Rushdi" for learning computer technologies.

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