Learning Bit by Bit

Clustering

Supervised vs. Unsupervised

• Training vs. Exploring

Supervised vs. Unsupervised

• Training vs. Exploring• The “right answer”

Supervised vs. Unsupervised

• Training vs. Exploring• The “right answer”• Data

Supervised vs. Unsupervised

• Training vs. Exploring• The “right answer”• Data• Error

Clustering

• Hierarchical or Agglomerative• K-means

Clustering

Clustering

• Cat =– Fluffy– Whiskers– Triangular perky ears– Long tail

Clustering

catcat

Hierarchical Clustering

Hierarchical Clustering

Hierarchical Clustering

Hierarchical Clustering

Hierarchical Clustering

Hierarchical Clustering

Hierarchical Clustering

Hierarchical Clustering

Dendrogram

Single Link

Single Link

Single Link

Single Link

Clustering Demos

Hierarchical Clustering

• Problem?

K-Means Clustering

K-Means Clustering

K-Means Clustering

K-Means Clustering

K-Means Clustering

K-Means Clustering

K-Means Clustering

K-Means Clustering

K-Means Clustering

K-Means Clustering

K-Means Clustering

• Demo

Homework

Homework

Homework