Loss function
IN STATISTICS, A FUNCTION REPRESENTING THE COST ASSOCIATED WITH AN EVENT
Objective function; Criterion function; Risk function; Quadratic loss function; Squared error loss; Loss functions; Stochastic criterion function; 0-1 loss function; Zero-one loss function; 0-1 loss; Zero-one loss; Loss Functions
In mathematical optimization and decision theory, a loss function or cost function (sometimes also called an error function) is a function that maps an event or values of one or more variables onto a real number intuitively representing some "cost" associated with the event. An optimization problem seeks to minimize a loss function.