classifier

A classifier is a tool used in computing and machine learning to automatically categorize data into different groups. When given new information, it analyzes patterns based on past examples and then assigns it to the most appropriate category. For example, an email spam filter uses a classifier to determine whether a message is legitimate or spam, based on characteristics like words and sender info. Essentially, classifiers help computers make decisions by learning from previous data, allowing them to categorize information efficiently and accurately.