criterionfunction

noun
UK /kraɪˈtɪəriən ˈfʌŋkʃən/
US /kraɪˈtɪriən ˈfʌŋkʃən/

A criterion function is a special rule that helps a computer or person decide which choice is best.

The program uses a criterion function to pick the shortest path through the maze.


OTHER MEANINGS

2. In statistics, a rule that measures how well a model fits the data.

The researchers compared models using a criterion function based on prediction error.

3. In machine learning, a formula that tells the computer how wrong its answers are so it can improve.

Training stopped when the criterion function stopped getting smaller.

4. A test or standard used to judge whether something meets a goal.

The judging panel applied a simple criterion function to rank the science projects.