Classifier (noun)

1. A person or thing that classifies or categorizes something.
2. A machine learning model or algorithm used to categorize data into discrete classes or categories.

Origin:

Late 19th century: from french classificateur, from classifier 'to classify'.

Examples:

1. The librarian was a skilled classifier and organized the library's collection with ease.
2. The classifier algorithm was trained on a large dataset to accurately categorize the images.
3. Personalized marketing campaigns were made possible through the classifier's predictions.
4. The classifier was able to accurately predict the type of flower in the image.
5. The machine learning algorithm was designed to act as a predictive classifier.