Robert Ball has devoted a significant amount of his adult years thinking about data. From visualizing data on 100-monitor displays, exploring migration patterns, to understanding the provenance and evolution of data through time, he has explored data expressed in many usages and forms. Dr. Ball both teaches and works with the private sector, public sector, and government in various projects and capacities. However, no matter the origin of the data, the ultimate question almost universally that needs to be answered is what insight can be discovered in the data?

Brian Rague joined the School of Computing faculty at Weber State University in 2003 after working on various data science and engineering research projects throughout his early career at MIT, Caltech, and NASA’s Jet Propulsion Laboratory. He has consulted with industry partners on how to effectively leverage the ongoing deluge of available data for both operations and research purposes. His areas of interest emphasize the platforms and technologies that wrangle and process data, such as machine learning, parallel computing, and distributed systems.

This book discusses the principles and practical applications of data science, addressing key topics including data wrangling, statistics, machine learning, data visualization, natural language processing and time series analysis. Detailed investigations of techniques used in the implementation of recommendation engines and the proper selection of metrics for distance-based analysis are also covered.

Utilizing numerous comprehensive code examples, figures, and tables to help clarify and illuminate essential data science topics, the authors provide an extensive treatment and analysis of real-world questions, focusing especially on the task of determining and assessing answers to these questions as expeditiously and precisely as possible. This book addresses the challenges related to uncovering the actionable insights in “big data,” leveraging database and data collection tools such as web scraping and text identification.

This book is organized as 11 chapters, structured as independent treatments of the following crucial data science topics:

Data gathering and acquisition techniques including data creation
Managing, transforming, and organizing data to ultimately package the information into an accessible format ready for analysis
Fundamentals of descriptive statistics intended to summarize and aggregate data into a few concise but meaningful measurements
Inferential statistics that allow us to infer (or generalize) trends about the larger population based only on the sample portion collected and recorded
Metrics that measure some quantity such as distance, similarity, or error and which are especially useful when comparing one or more data observations
Recommendation engines representing a set of algorithms designed to predict (or recommend) a particular product, service, or other item of interest a user or customer wishes to buy or utilize in some manner
Machine learning implementations and associated algorithms, comprising core data science technologies with many practical applications, especially predictive analytics
Natural Language Processing, which expedites the parsing and comprehension of written and spoken language in an effective and accurate manner
Time series analysis, techniques to examine and generate forecasts about the progress and evolution of data over time

Data science provides the methodology and tools to accurately interpret an increasing volume of incoming information in order to discern patterns, evaluate trends, and make the right decisions. The results of data science analysis provide real world answers to real world questions. Professionals working on data science and business intelligence projects as well as advanced-level students and researchers focused on data science, computer science, business and mathematics programs will benefit from this book.

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