In my decision tree post, I mentioned several different types of algorithms that can be used to create a decision tree. Today, I'll be talking about a decision tree called the Iterative Dichotomiser 3 (ID3) algorithm.
by Joseph Woolf
In my previous algorithm post, I talked about a family of algorithms called Naive Bayes. These algorithms used Bayes' theorem, independence, and probabilities to determine whether a test case can be positively categorized. However, these algorithms don't take into account the relationships between features. Additionally, it would be nice to visualize how the model actually made decisions. Fortunately, decision trees allow us to visualize the relationship of each property for classifying categories.
This week's dataset will be on one of the most well known datasets used in machine learning. Introduced in 1936 by Ronald Fisher, the iris dataset is used to test out the accuracy of machine learning algorithms. Read more