Loss Function - Loss Functions in Bayesian Statistics

Loss Functions in Bayesian Statistics

One of the consequences of Bayesian inference is that in addition to experimental data, the loss function does not in itself wholly determine a decision. What is important is the relationship between the loss function and the prior probability. So it is possible to have two different loss functions which lead to the same decision when the prior probability distributions associated with each compensate for the details of each loss function.

Combining the three elements of the prior probability, the data, and the loss function then allows decisions to be based on maximizing the subjective expected utility, a concept introduced by Leonard J. Savage.

Read more about this topic:  Loss Function

Famous quotes containing the words loss, functions and/or statistics:

    I have always observed, when there is as much sour as sweet in a compliment, that an Englishman is eternally at a loss within himself, whether to take it, or let it alone: a Frenchman never is.
    Laurence Sterne (1713–1768)

    When Western people train the mind, the focus is generally on the left hemisphere of the cortex, which is the portion of the brain that is concerned with words and numbers. We enhance the logical, bounded, linear functions of the mind. In the East, exercises of this sort are for the purpose of getting in tune with the unconscious—to get rid of boundaries, not to create them.
    Edward T. Hall (b. 1914)

    O for a man who is a man, and, as my neighbor says, has a bone in his back which you cannot pass your hand through! Our statistics are at fault: the population has been returned too large. How many men are there to a square thousand miles in this country? Hardly one.
    Henry David Thoreau (1817–1862)