loss function

American  

noun

1. (in decision theory) a function that expresses the loss incurred when a decision is made in terms of various factors.

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Example Sentences

A loss function is the mathematical formula that measures how far an AI model's predictions deviate from the correct answer.

From Science Daily • Mar. 3, 2026

"This gives us a kind of 'periodic table' of AI methods. Different methods fall into different cells, based on which information a method's loss function retains or discards."

From Science Daily • Mar. 3, 2026

Gains in machine-learning algorithms can come from fundamental changes in their architecture, loss function, or optimization strategy—how they use feedback to improve.

From Science Magazine • May 27, 2020

This control only works well when there is a proper definition of the loss function.

From Definition & Reality in the General Theory of Political Economy by Colignatus, Thomas

The issue of the loss function is a crucial one, but this is not falsificationism.

From Definition & Reality in the General Theory of Political Economy by Colignatus, Thomas