Tuesday

Objectives

• Learn about when and why to re-scale data
• Use K-Nearest Neighbors to predict categories by distance

Readings

• Feature Scaling and Normalization
• A Detailed Introduction to K-Nearest Neighbors
• K-Nearest Neighbors Algorithm (Wikipedia)
• How KNN Works (video)

Review

Concepts

• Rescaling Data
  • Simple Rescaling
  • Orders of Magnitude
• K-Nearest Neighbors Classifier
  • The Algorithm
  • Advantages
  • Disadvantages
  • Attributes
  • Operations

• Final Whiteboarding

Demo

Assignments

• Implement the K-Nearest Neighbors Classifier
• Group Project: Begin User Stories
• Django: Add Social Authentication
• Technical Blog Post: Publish Your Post (Due Friday)
• Today I learned...