Big data quality – Part 1
Jim Harris addresses some of the most common questions and challenges big data poses for data quality.
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Augmented reality: yes or no?
“Our job at the lab is to find technology that’s new, cutting edge and cool – and to give it to someone else to be brilliant with.” – Matthew Horn, Manager, SAS Emerging Technologies UI Lab If you’ve heard of Google Glasses or Occulus Rift, you’ve heard of augmented reality.
Tabulate counts when there are unobserved categories
Suppose that you are tabulating the eye colors of students in a small class (following Friendly, 1992). Depending upon the ethnic groups of these students, you might not observe any green-eyed students. How do you put a 0 into the table that summarizes the number of students who have each