Chapter 5 Supervised, Unsupervised and Semi-Supervised Learning Flashcards
WHAT IS THE GOAL OF UNSUPERVISED LEARNING? P26
To model the underlying structure or distribution in the data
WHAT ARE THE 2 GROUPS OF UNSUPERVISED LEARNING? P26
Clustering: A clustering problem is where you want to discover the inherent groupings in the data, such as grouping customers by purchasing behavior.
Association: An association rule learning problem is where you want to discover rules that describe large portions of your data, such as people that buy A also tend to buy B.
WHAT ARE SOME POPULAR UNSUPERVISED LEARNING ALGORITHMS? P26
K-means for clustering
Apriori algorithm for association rule learning problems
WHAT ARE SEMI-SUPERVISED LEARNING PROBLEMS? P26
Problems where you have a large amount of data (X) and only some of the data is labeled (Y).