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3.8. Naive Bayes

Naive Bayes algorithms are a set of supervised learning methods based on applying Baye’s theorem with strong (naive) independence assumptions.

The advantage of Naive Bayes approaches are:

  • It requires a small amount of training data to estimate the parameters necessary for classification.
  • In spite of their naive design and apparently over-simplified assumptions, naive Bayes classifiers have worked quite well in many complex real-world situations.
  • The decoupling of the class conditional feature distributions means that each distribution can be independently estimated as a one dimensional distribution. This in turn helps to alleviate problems stemming from the curse of dimensionality.

3.8.1. Gaussian Naive Bayes

GNB implements the Gaussian Naive Bayes algorithm for classification.