ABSTRACT
Today millions of people are posting pictures and digital videos online. Mobile phones and social media enable us to track and share many aspects of our lives including what we eat, drink, and do for exercise. Many are open to sharing or talking about their interests, their jobs, brands that they like, recent transactions that they have made, and a lot more. As a result, nearly every decision point, activity, or transaction is generating some form of data; and this explosion of information is what we now call big data.
