Book Image

Java Data Analysis

By : John R. Hubbard
Book Image

Java Data Analysis

By: John R. Hubbard

Overview of this book

Data analysis is a process of inspecting, cleansing, transforming, and modeling data with the aim of discovering useful information. Java is one of the most popular languages to perform your data analysis tasks. This book will help you learn the tools and techniques in Java to conduct data analysis without any hassle. After getting a quick overview of what data science is and the steps involved in the process, you’ll learn the statistical data analysis techniques and implement them using the popular Java APIs and libraries. Through practical examples, you will also learn the machine learning concepts such as classification and regression. In the process, you’ll familiarize yourself with tools such as Rapidminer and WEKA and see how these Java-based tools can be used effectively for analysis. You will also learn how to analyze text and other types of multimedia. Learn to work with relational, NoSQL, and time-series data. This book will also show you how you can utilize different Java-based libraries to create insightful and easy to understand plots and graphs. By the end of this book, you will have a solid understanding of the various data analysis techniques, and how to implement them using Java.
Table of Contents (20 chapters)
Java Data Analysis
Credits
About the Author
About the Reviewers
www.PacktPub.com
Customer Feedback
Preface
Index

Other NoSQL database systems


As mentioned earlier, MongoDB is currently the top ranked NoSQL database system. (see http://www.kdnuggets.com/2016/06/top-nosql-database-engines.html) It is followed by Apache Cassandra, Redis, Apache HBase, and Neoj4.

MongoDB uses the document data model: a database is a set of collections, each of which is a set of documents, each of which is a set of key-value pairs. Each document is stored as a BSON file.

Cassandra and HBase use the column data model: each data element is a triple: a key, its value, and a timestamp. Cassandra has its own query language, called CQL, that looks like SQL.

Redis uses the key-value data model: a database is a set of dictionaries, each of which is a set of key-value records, where the value is a sequence of fields.

Neoj4 uses the graph data model: a database is a graph whose nodes contain the data. It supports the Cypher query language. Other graph DBS that support Java include GraphBase and OrientDB.

These all have Java APIs, so you...