Loss function
(Redirected from Cost function)
In mathematics a loss function or cost function is a mathematical function that maps an event, or the values of one or more variables onto a real number. This number is then given a semantic value, such as cost or utility. Optimisation can then be used to find the value where the function is minimal, or at one of its maxima.
Loss Function Media
Comparison of common loss functions used for regression
Effect of using different loss functions, when the data has outliers.
