My Model Had 100% Recall — Then I Realized It Was Predicting "Exoplanet" for Everything
This story is from 2026-08-30. It is preserved in the archive; the latest stories are on the live feed.
A few months ago, I set out to build a model that detects exoplanets from stellar brightness data (light curves) collected by NASA's Kepler telescope. When a planet passes in front of a star, it blocks a tiny bit of light — a "transit." The goal: train a model to spot that pattern. I thought it'd b…
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- 2026-08-30 18:05 · DEV Community — Machine Learning
My Model Had 100% Recall — Then I Realized It Was Predicting "Exoplanet" for Everything