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Linear Regression

Jun 27, 202610 min read

Types of Machine Learning

You're building a spam filter for your inbox. The classic approach is hand-written rules: if "free money" in subject: mark_as_spam . It works — until senders ad…

Tutorial

Jun 27, 20268 min read

Equation of a Line, 3D Plane, and Hyperplane

You're pricing a house — 1,200 square feet, 3 bedrooms. You know bigger houses cost more, and more bedrooms add value. The question is how to combine these two…

Tutorial

Jun 25, 20266 min read

Distance of a Point from a Plane

A bank receives a loan application: income \$45k, debt ratio 0.35. Should they approve it? The decision depends on where this applicant sits relative to the ban…

Tutorial

Jun 25, 20266 min read

Instance-Based vs Model-Based Learning

You're building a real-time loan approval system. Every application needs a credit decision in under 100 milliseconds. You train a logistic regression model — a…

Tutorial

Jun 25, 20267 min read

Simple Linear Regression

A real estate agent asks you: "I have six recent sales in this neighborhood. If a 1,000 sq ft house comes on the market, what's it worth?" You could take the av…