Decision boundary Machine Learning
noun phrase
Definition: A surface (or curve/line in lower dimensions) in feature space that separates regions assigned to different classes by a classifier [Google ML Glossary].
Example in context: “SVM is a classification algorithm that attempts to create a decision boundary between two classes that will enable the prediction of labels from feature vectors.” [Yang et al. 2023]
Related terms: classification boundary, separating surface, hyperplane (linear case)