Lucas Fidon added Another_definition_of_I_X__.tex  almost 8 years ago

Commit id: 94a9d423d3790c04ba73ab37f35f77666d054b20

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Another definition of $I(X,Y)$ is:  \[ I(X,Y) = \sum_{(x,y) \in E_1\times E_2}P_{(X,Y)}(x,y)log\Bigg(\frac{P_{(X,Y)}(x,y)}{P_{X}(x)P_{Y}(y)}\Bigg) \]