This morning I'm speaking at Harford Community College's 2023 STEM day. https://www.harford.edu/about/get-to-know-harford/news/2023/01-january/stem-day.php The slides for my talk, Data Science as a Superpower, are here: http://amelia.mn/presentations/DataScienceAsASuperPower2023.pdf
#2731 K-Means Clustering
According to my especially unsupervised K-means clustering algorithm, there are currently about 8 billion types of people in the world.
https://xkcd.com/2731/
It's taken me over a decade to realize how significant a problem this is, but comparing GPAs between students with significantly divergent course history is idiotic.
At least in programs with a lot of course choice, a GPA largely measures a student's ability to pick courses in which they will achieve high marks, and punishes students who challenge themselves.
While I’m on about nice software, the @Iconfactory’s just-right iPad/iOS sketching app Linea was updated today. I like it. https://blog.iconfactory.com/2023/01/announcing-linea-sketch-4-2/