Dimension
Domain: Math & Logic for AI
🎯 Motivation
The number of independent directions in a space. Each feature adds a dimension.
📋 Concrete Example
A 3-feature dataset (height, weight, age) is 3-dimensional. An image with 784 pixels is 784-dimensional.
🔗 Analogy
Like the axes on a graph - 2 axes is a flat plane, 3 axes is a 3D space, more axes are beyond what we can picture.