While Model Trains

Read data blog posts.
Carefully handpicked.
Presented 3 at a time.

Variance after scaling and summing: One of the most useful facts from statistics

Chris Said

"What do R2, laboratory error analysis, ensemble learning, meta-analysis, and financial portfolio risk all have in common? The answer is that they all depend on a fundamental principle of statistics that is not as widely known as it should be. Once this principle is understood, a lot of stuff starts to make more sense."

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Are Pop Lyrics Getting More Repetitive?

Colin Morris

A fascinating visual essay that utilizes the Lempel-Ziv algorithm (which powers GIFs, PNGs, and most archive formats) to analyze if pop songs are becoming more repetitive.

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Deep Learning ideas that have stood the test of time

Denny Britz

An overview of deep learning breakthroughs that have demonstrated their value over time, from AlexNet in 2012 to GPT-3 in 2020.

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