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Data is everywhere, shedding light on all aspects of life. Retailers know what's selling and who's buying. Pollsters test opinions on everything from candidates to consumer goods. Doctors follow their patients' vital signs. Social networks register the interactions of millions. Sensors measure the changing weather. And as athletes play, fans collect exhaustive statistics on their performance.
Big Data: How Data Analytics Is Transforming the World introduces you to the key concepts, methods, and accomplishments of this versatile approach to problem solving. Taught by Professor Tim Chartier, an award-winning Associate Professor of Mathematics and Computer Science at Davidson College, these lessons give you the big picture on big data, highlighting the crucial role of data analytics in today's world and the even greater impact it will have in the future.
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|Section 1: Data Analytics – What’s the Big Idea?|
The world is already producing a terabyte of new data, per person, every year? That's Big Data! In this video, Prof. Chartier introduces you to the world of Big Data and explains how the field of data analysis impacts us in unprecedented ways.
In the Digital Age, data analysis is our window to the unknown. It enables us to predict, with better accuracy and higher probability, many aspects of the future. Watch to learn more.
The size of big datasets has created the need for new data analysis methods. This is because Big Data is often defined as having 3 Vs: volume, velocity, and variety. In this video, Prof. Chartier speaks about two of them—volume and velocity.
|In this video, Prof. Chartier speaks about the final V of big data—variety. Watch the video to learn more about variety and its significance in the context of historical data.|
|In the real world, we can't easily compute optimal solutions for complex problems. However, data analysis holds immense power and infinite possibilities. This video explains how data analysis helps us in the real world.|
|Does data analysis give you AN answer or THE answer? There are several misconceptions about data analysis. In this video, Prof. Chartier shares a few common misconceptions.|
|We often expect to obtain data in the format required for our analysis, but our expectation may be unrealistic. This video sheds light on some other misconceptions about data analysis.|
|Section 2: Got Data? What Are You Wondering About?|
|Data analysis benefits not only large organizations but also individuals. Watch as Prof. Cartier explains personal data analysis and its advantages.|
|While gathering data is worthwhile, data automatically does not mean insight. Having a clear goal makes a huge difference! This video sheds light on this critical aspect of data analysis.|
|Today, several devices give us information, such as our heart rate, and generate data for analysis. In this video, Prof. Chartier shares the example of Stephen Wolfram—CEO, Wolfram Research—who used simple techniques to gather data about his own life, gain insight, and make necessary changes.|
|Data Analysis can be applied to anything that interests you. For instance, watch this video to see how your social network on Facebook can be analyzed.|
|This video presents another striking example of the power of data analysis. Watch the video to learn how the gathering and analyzing data helped the coaching staff of the men's basketball team at Davidson College.|
In this video, Prof. Chartier discusses the basic stages of data analysis. Watch the video to learn how this knowledge can be applied to your personal life.
|Section 3: Quantifying Quality on the World Wide Web|
|Have you wondered how Google analyzes data to form its search results? In this video, Prof. Chartier explains Google's underlying algorithm, PageRank, which has revolutionized the Internet and helped us find accurate information online.|
How did the founders of Google create an intelligent search engine? In this video, Prof. Chartier answers this question by discussing the idea of endorsement, interconnectedness of online pages, and data analytics.
Does Google's PageRank work for any data on the web? In this video, Prof. Chartier puts to rest all burgeoning doubts by explaining Perron's Theorem and the idea of teleportation.
How did JC Penny outperform other competitors in the market? Can big data be exploited for vested interests? Watch the video to understand how some businesses have exploited Google's algorithm for their own benefits.
|This video shows how “Internet politics” can alter the information we find online. Learn about link farms and Google bombing in the complex world of data analytics and search engine results.|
|Section 4: Challenges of Privacy and Security|
|Is it difficult to keep personal data secure? What can be done to improve security? In this video, Prof. Chartier asks basic questions about data security, and cites the example of Netflix who shared the personal data of its customers and compromised their privacy.|
What is Facebook doing with our data anyway? In this video, Prof. Chartier explores Facebook's 2007 feature Beacon, data security issues, the advantages of procuring big data, and the tangible benefits to businesses.
Prof. Chartier discusses the US National Security Agency and data security issues. He also informs us about the consequences of classified information disclosures.
Your first step to ensuring data security is to create a strong password. Watch this video to learn why it is important to create strong, secure passwords.
|Companies are constantly finding new ways to keep their data secure. In this video, you will learn about a few new security approaches: virtual private networks (VPN), cryptography, and anonymity.|
In 2014, President Barack Obama announced a comprehensive review of big data and privacy. A few critical questions were: How much data should businesses share with each other or the government? How much data should businesses or the government share with the rest of us? This video sheds light on the government's policy review of big data and privacy.
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