Glossary term
Glossary term
Foundations
A type of classification task that predicts one of two mutually exclusive classes:
the positive class
the negative class
For example, the following two machine learning models each perform binary classification:
A model that determines whether email messages are spam (the positive class) or not spam (the negative class).
A model that evaluates medical symptoms to determine whether a person has a particular disease (the positive class) or doesn't have that disease (the negative class).
Contrast with multi-class classification.
See also logistic regression and classification threshold.
See Classification in Machine Learning Crash Course for more information.
For example, the following two machine learning models each perform binary classification:
A model that determines whether email messages are spam (the positive class) or not spam (the negative class).
A model that evaluates medical symptoms to determine whether a person has a particular disease (the positive class) or doesn't have that disease (the negative class).
Created for this library
A subscription business frames churn as a binary classification problem with labels churned and retained over a 30-day window.
A bank uses binary classification to predict whether a transaction is fraudulent or legitimate at authorization time.
A radiology startup builds a binary classifier to label chest X-rays as pneumonia or non-pneumonia for triage in the emergency department.
Definition source: Google for Developers Machine Learning Glossary | Creative Commons Attribution 4.0 License