Practical Data Science with Hadoop and Spark: Designing and Building Effective Analytics at Scale, 1st edition

Published by Addison-Wesley Professional (December 12, 2016) © 2017

  • Ofer Mendelevitch
  • Casey Stella
  • Douglas Eadline

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This book provides a unique perspective on applying data science with Hadoop by explaining what data science with Hadoop is all about, its practical business applications, and then diving deep into the details and providing a hands-on tutorial and showcase of various use-cases from the real world. The authors bring together all the practical knowledge students will need to do real, useful data science with Hadoop.
  • Responds to soaring demand for practical information about applying data science and Big Data in Hadoop environments
  • Brings together practical business applications, deep-dive technical detail, hands-on Hadoop and data science tutorials, and showcases of innovative use cases
  • Goes far beyond simple analytics to illuminate cutting-edge techniques and applications
  • Reflects the authors' unique real-world experience with Hortonworks' enterprise Hadoop customers

Foreword xiii

Preface xv

Acknowledgments xxi

About the Authors xxiii

 

Part I: Data Science with Hadoop—An Overview 1

 

Chapter 1: Introduction to Data Science 3

What Is Data Science? 3

Example: Search Advertising 4

A Bit of Data Science History 5

Becoming a Data Scientist 8

Building a Data Science Team 12

The Data Science Project Life Cycle 13

Managing a Data Science Project 18

Summary 18

 

Chapter 2: Use Cases for Data Science 19

Big Data—A Driver of Change 19

Business Use Cases 21

Summary 29

 

Chapter 3: Hadoop and Data Science 31

What Is Hadoop? 31

Hadoop’s Evolution 37

Hadoop Tools for Data Science 38

Why Hadoop Is Useful to Data Scientists 46

Summary 51

 

Part II: Preparing and Visualizing Data with Hadoop 53

 

Chapter 4: Getting Data into Hadoop 55

Hadoop as a Data Lake 56

The Hadoop Distributed File System (HDFS) 58

Direct File Transfer to Hadoop HDFS 58

Importing Data from Files into Hive Tables 59

Importing Data into Hive Tables Using Spark 62

Using Apache Sqoop to Acquire Relational Data 65

Using Apache Flume to Acquire Data Streams 74

Manage Hadoop Work and Data Flows with Apache

Oozie 79

Apache Falcon 81

What’s Next in Data Ingestion? 82

Summary 82

 

Chapter 5: Data Munging with Hadoop 85

Why Hadoop for Data Munging? 86

Data Quality 86

The Feature Matrix 93

Summary 106

 

Chapter 6: Exploring and Visualizing Data 107

Why Visualize Data? 107

Creating Visualizations 112

Using Visualization for Data Science 121

Popular Visualization Tools 121

Visualizing Big Data with Hadoop 123

Summary 124

 

Part III: Applying Data Modeling with Hadoop 125

 

Chapter 7: Machine Learning with Hadoop 127

Overview of Machine Learning 127

Terminology 128

Task Types in Machine Learning 129

Big Data and Machine Learning 130

Tools for Machine Learning 131

The Future of Machine Learning and Artificial Intelligence 132

Summary 132

 

Chapter 8: Predictive Modeling 133

Overview of Predictive Modeling 133

Classification Versus Regression 134

Evaluating Predictive Models 136

Supervised Learning Algorithms 140

Building Big Data Predictive Model Solutions 141

Example: Sentiment Analysis 145

Summary 150

 

Chapter 9: Clustering 151

Overview of Clustering 151

Uses of Clustering 152

Designing a Similarity Measure 153

Clustering Algorithms 154

Example: Clustering Algorithms 155

Evaluating the Clusters and Choosing the Number of Clusters 157

Building Big Data Clustering Solutions 158

Example: Topic Modeling with Latent Dirichlet Allocation 160

Summary 163

 

Chapter 10: Anomaly Detection with Hadoop 165

Overview 165

Uses of Anomaly Detection 166

Types of Anomalies in Data 166

Approaches to Anomaly Detection 167

Tuning Anomaly Detection Systems 170

Building a Big Data Anomaly Detection Solution with Hadoop 171

Example: Detecting Network Intrusions 172

Summary 179

 

Chapter 11: Natural Language Processing 181

Natural Language Processing 181

Tooling for NLP in Hadoop 184

Textual Representations 187

Sentiment Analysis Example 189

Summary 193

 

Chapter 12: Data Science with Hadoop—The Next Frontier 195

Automated Data Discovery 195

Deep Learning 197

Summary 199

 

Appendix A: Book Web Page and Code Download 201

 

Appendix B: HDFS Quick Start 203

Quick Command Dereference 204

 

Appendix C: Additional Background on Data Science and Apache Hadoop and Spark 209

General Hadoop/Spark Information 209

Hadoop/Spark Installation Recipes 210

HDFS 210

MapReduce 211

Spark 211

Essential Tools 211

Machine Learning 212

 

Index 213

Ofer Mendelevitch is Vice President of Data Science at Lendup, where he is responsible for Lendup’s machine learning and advanced analytics group. Prior to joining Lendup, Ofer was Director of Data Science at Hortonworks, where he was responsible for helping Hortonwork’s customers apply Data Science with Hadoop and Spark to big data across various industries including healthcare, finance, retail and others. Before Hortonworks, Ofer served as Entrepreneur in Residence at XSeed Capital, VP of Engineering at Nor1, and Director of Engineering at Yahoo!.

Casey Stella is a Principal Software Engineer focusing on Data Science at Hortonworks, which provides an open source Hadoop distribution. Casey’s primary responsibility is leading the analytics/data science team for the Apache Metron (Incubating) Project, an open source cybersecurity project. Prior to Hortonworks, Casey was an architect at Explorys, which was a medical informatics startup spun out of the Cleveland Clinic.  In the more distant past, Casey served as a developer at Oracle, Research Geophysicist at ION Geophysical and as a poor graduate student in Mathematics at Texas A&M.

Douglas Eadline, PhD, began his career as analytical chemist with an interest in computer methods. Starting with the first Beowulf how-to document, Doug has written hundreds of articles, white papers, and instructional documents covering many aspects of HPC and Hadoop computing. Prior to starting and editing the popular ClusterMonkey.net website in 2005, he served as editor¿in¿chief for ClusterWorld Magazine and was senior HPC editor for Linux Magazine. He has practical hands-on experience in many aspects of HPC and Apache Hadoop, including hardware and software design, benchmarking, storage, GPU, cloud computing, and parallel computing. Currently, he is a writer and consultant to the HPC/analytics industry and leader of the Limulus Personal Cluster Project (http://limulus.basement-supercomputing.com). He is author of the Apache Hadoop® Fundamentals LiveLessons and Apache Hadoop® YARN Fundamentals LiveLessons videos from Pearson, and is book co-author of Apache Hadoop® YARN: Moving beyond MapReduce and Batch Processing with Apache Hadoop 2 and author of Hadoop® 2 Quick Start Guide: Learn the Essentials of Big Data Computing in the Apache Hadoop 2 Ecosystem, also from Addison-Wesley, and is author of High Performance Computing for Dummies.

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