Loss Function

A loss function is a real lower-bounded function L on Θ × A for some θ ∈ Θ. The value L(θ, δ(X)) is the cost of action δ(X) under parameter θ.

Read more about Loss Function:  Decision Rules, Expected Loss, Selecting A Loss Function, Loss Functions in Bayesian Statistics, Regret, Quadratic Loss Function, 0-1 Loss Function

Famous quotes containing the words loss and/or function:

    This loss of interest, hair, and enterprise ...
    Philip Larkin (1922–1986)

    Nobody seriously questions the principle that it is the function of mass culture to maintain public morale, and certainly nobody in the mass audience objects to having his morale maintained.
    Robert Warshow (1917–1955)