Loss Function - Expected Loss

Expected Loss

The value of the loss function itself is a random quantity because it depends on the outcome of a random variable X. Both frequentist and Bayesian statistical theory involve making a decision based on the expected value of the loss function: however this quantity is defined differently under the two paradigms.

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Famous quotes containing the words expected and/or loss:

    English life, while very pleasant, is rather bland. I expected kindness and gentility and I found it, but there is such a thing as too much couth.
    S.J. Perelman (1904–1979)

    Begin with loss and see
    how the world contradicts you,
    how the horizon implies that beyond it
    the water is not empty
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    all docking at another island.
    Lynn Emanuel (b. 1949)