Categorical Outliers Don’t Exist

At least not without context

One of the first questions I’m always asked is “Can you detect categorical outliers?” Most people are familiar with the concept of a numerical outlier but there is often confusion regarding the topic…

PushDown vs PullUp Processing; Why things are Changing

Why Basic Outlier Detection Doesn’t Work

Using statistics to solve data quality problems is a…

The Single Best Data Quality Rule

The best DQ rule, is the one you don’t have to write

Outlier Detection Using Owl

Numerical Outliers

Why Drill-Ins and Roll-Ups Matter for Data Quality

Dataset Scorecard