Articles by Jerry Tuttle

How do I count thee? Let me count the ways?

November 1, 2022 | Jerry Tuttle

How do I count thee? Let me count the ways? by Jerry Tuttle In Major League Baseball, a player who hits 50 home runs in a single season has hit a lot of home runs. Suppose I want to count the number of 50 homer seasons by team, and also the number ...

[Read more...]

ROC for Decision Trees – where did the data come from?

August 8, 2020 | Jerry Tuttle

ROC for Decision Trees – where did the data come from? By Jerry Tuttle In doing decision tree classification problems, I have often graphed the ROC (Receiver Operating Characteristic) curve. The True Positive Rate (TPR) is on the y-axis, and the False Positive Rate (FPR) is on the x-axis. True Positive ... [Read more...]

Outliers and Domain Knowledge

July 10, 2020 | Jerry Tuttle

by Jerry Tuttle I would like to share some thoughts about outliers and domain knowledge. One of the common steps during the data exploration stage is the search for outliers. Some analysis methods such as regression are very sensitive to outliers. As an example of sensitivity, in the following data (10,10) ... [Read more...]

“Those who can, do; those who can’t – use computer simulation.”

April 15, 2020 | Jerry Tuttle

“Those who can, do; those who can’t – use computer simulation.” This quote was inspired by playwright George Bernard Shaw. Computer simulation is a powerful tool that attempts to reproduce the behavior of some real-world system by sampling from one or more probability distributions. It can help explain and illustrate ...