Perplexity

Perplexity

Perplexity is a measurement in information theory. It is defined as b raised to the power of entropy in base b, or more often as b raised to the power of cross-entropy in base b. The latter definition is commonly used to compare probability models.

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Famous quotes containing the word perplexity:

    Only crime and the criminal, it is true, confront us with the perplexity of radical evil; but only the hypocrite is really rotten to to the core.
    Hannah Arendt (1906–1975)

    In luck or out the toil has left its mark:
    That old perplexity an empty purse,
    Or the day’s vanity, the night’s remorse.
    William Butler Yeats (1865–1939)

    The perplexity of life arises from there being too many interesting things in it for us to be interested properly in any of them.
    Gilbert Keith Chesterton (1874–1936)