ROC Curve

The Receiver Operating Characteristics (ROC) curve is a measure of how well a statistical or machine learning model (or a medical diagnostic procedure) can distinguish between two classes, say 1’s and 0’s.  For example, fraudulent insurance claims (1’s) and non-fraudulent ones (0’s). It plots two quantities:


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Deming’s Funnel Problem

W. Edwards Deming's funnel problem is one of statistics' greatest hits. Deming was a noted statistician who took the statistical process control methods of Shewhart and expanded them into a holistic approach to manufacturing quality. Initially, his ideas were cooly received in the US and…

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