Encyclopedia · 176 concepts

Core ML Concepts · beginner · concept 16 of 176

Logistic Regression

The industry-default baseline classifier: a linear model pushed through a sigmoid so its output reads as a probability. It is also the bridge to deep learning, since a single sigmoid neuron trained with cross-entropy IS logistic regression. Interpretable, fast, and the first thing to try before anything fancier.

Key terms

SigmoidDecision boundaryLog oddsCross-entropyBaseline model

Where you meet it in the real world

Credit default scoring, click-through prediction, medical risk models, every A/B test readout

Videos

StatQuest: Logistic Regression

StatQuest with Josh Starmer · YouTube