Definition
The joint entropy of two variables and is defined as
where and are particular values of and, respectively, is the probability of these values occurring together, and is defined to be 0 if .
For more than two variables this expands to
where are particular values of, respectively, is the probability of these values occurring together, and is defined to be 0 if .
Read more about this topic: Joint Entropy
Famous quotes containing the word definition:
“Was man made stupid to see his own stupidity?
Is God by definition indifferent, beyond us all?
Is the eternal truth man’s fighting soul
Wherein the Beast ravens in its own avidity?”
—Richard Eberhart (b. 1904)
“One definition of man is “an intelligence served by organs.””
—Ralph Waldo Emerson (1803–1882)
“Perhaps the best definition of progress would be the continuing efforts of men and women to narrow the gap between the convenience of the powers that be and the unwritten charter.”
—Nadine Gordimer (b. 1923)