Engineering Alpha

Engineering Alpha

I Hid a Small Pattern in Data and Ran ML Models to Find It

A Fun Little Discussion

Sofien Kaabar, CFA's avatar
Sofien Kaabar, CFA
Sep 16, 2026
∙ Paid

Most machine learning demos are clean. The pattern is obvious. The dataset is friendly. The model wins easily.

Real data is rarely like that.

So I tried a small experiment: I hid a pattern inside a dataset and asked a few machine learning models to find it. Nothing fancy. No giant models. Just a simple question:

If a pattern is subtle but real, will common…

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