M05·AI/ML Foundations

Start Simple - The Power of Linear Models

Linear regression from scratch to Scikit-learn pipeline. Build the baseline every production team starts with.

Start Simple - The Power of Linear Models

Linear models1 power more production systems than most people realize: recommendation engines, fraud detection, pricing algorithms. The smartest ML teams start here, not because linear models are a stepping stone, but because they force you to understand your data and build something you can actually debug.

This tutorial takes the math you just learned (vectors, gradients, optimization) and turns it into a working prediction system.

Tutorial Goals

  • Build linear regression from scratch with NumPy
  • Understand why linear models dominate production systems
  • Apply feature engineering to extend linear models
  • Train and evaluate a housing price predictor with Scikit-learn
  • Develop judgment for when simple beats complex

Why Start With Linear Models

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References

Footnotes

  1. Scikit-learn Linear Models Documentation

  2. Rules of Machine Learning: Best Practices for ML Engineering

  3. Statistical Modeling: The Two Cultures

  4. Scikit-learn OneHotEncoder

  5. California Housing Dataset

  6. Scikit-learn Pipeline

  7. Scikit-learn StandardScaler

  8. An Introduction to Statistical Learning