Why Your Betas Explode: The Hidden Geometry of Multicollinearity
a marketing mix model to a senior director. The slide showed two beta coefficients side by side: Linear TV at +2.4, Digital TV at +1.8. He nodded, satisfied. Then he…
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How I’m Making Sure My Analytics Career Doesn’t Get Eaten by AI
, someone at work brings up a version of this question: is AI going to take my job? I’ll admit that I have asked some version of that same question…
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That Is Embarrassing: Why Frontier AI Still Makes Things Up, and What to Do About It
on my talk “Embarrassing AI.” If you prefer the video, watch it here. All the stories below are real, all of them happened on frontier models, and most of them happened…
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The Real Challenge Limiting AI Models Today
some of the problems we face in implementing AI algorithms, we usually focus on the processors’ ability to handle them. But now, NVIDIA’s GPUs power the latest large language models,…
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PANet Paper Walkthrough: When Feature Pyramids Go Bottom-Up
I wrote about the FPN (Feature Pyramid Network) architecture [1], which is one of the most influential necks we can apply to a backbone model. FPN was first introduced to…
