Traditional ML

Linear Models and Regularization

Prepare regression, logistic regression, loss functions, regularization, optimization, and coefficient interpretation.

Recommended on day 1090 minutesBeginner

Learning objectives

  • Derive the intuition behind MSE, log loss, L1, and L2 regularization
  • Explain coefficient interpretation, multicollinearity, and feature scaling
  • Connect thresholding and calibration to business decisions

Interview prompts

  • Why does L1 regularization produce sparse weights?
  • How do you interpret logistic regression coefficients?