Learn how representative samples and random samples differ and why combining them minimizes sampling bias for accurate data.

Chief Data Scientist at Reorg, a global provider of credit intelligence, data and analytics, and Adjunct at UVA’s School of Data Science. Text data is one of the largest forms of unstructured data and ...

Commentary--If IBM is right, corporate databases in the future might record your age as 157 and your income as the square root of two. Big Blue is experimenting with an idea for customer databases ...

It is unclear whether supplementation with vitamin D reduces the risk of cancer or cardiovascular disease, and data from randomized trials are limited. A total of 25,871 participants, including 5106 ...