Basic Math Concepts – One-Hot in Neural Network

1. Basic Set Theory

  • Understanding of unique elements in a list.
  • Concept of mapping a label to a position/index.

2. Vectors

  • A vector is just a list of numbers — One-Hot Encoding turns each category into a vector.

3. Arrays and Indexing

  • The idea that each category gets its own position (index).
  • Understanding how to place a 1 at a specific index.

4. No Need for Arithmetic Operations

  • One-hot encoding does not require multiplication or addition.
  • It’s more about structure and mapping than calculation.

Next – Bucketing in Neural Networks