Problem of classifying instances into one of three or more classes
Also known as multiclass · multinomial classification · multi-class classification
5 identifiers linking multiclass classification across the web's reference databases
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In machine learning and statistical classification, multiclass classification or multinomial classification is the problem of classifying instances into one of three or more classes. For example, deciding on whether an image is showing a banana, peach, orange, or an apple is a multiclass classification problem, with four possible classes, while deciding on whether an image contains an apple or not is a binary classification problem.