Classification Naive Bayes Bayesian Methods Learning and classification methods based on probability theory Bayes theorem plays a critical role in probabilistic learning and classification Builds a generative model that approximates how data is produced Uses prior probability of each category given no information about an item Categorization produces a posterior probability distribution over the possible categories given a description of an itemClassification 7 Bayesian Methods ▪ Learning and classification methods based on probability theory. ▪ Bayes theorem plays a critical role in probabilistic learning and classification. ▪ Builds a generative model that approximates how data is produced ▪ Uses prior probability of each category given no information about an item. ▪ Categorization produces a posterior probability distribution over the possible categories given a description of an item. Naïve Bayes