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

When it comes to data storage, efforts to get faster access grab most of the attention. But long-term archiving of data is equally important, and it generally requires a completely different set of ...

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 ...