In the formula for the expected value for mutual information [1], the third
summation uses n_{i,j}.
Is this a new value, or do I use the value from the contingency matrix?
My thinking is that is a new value, as the expected information shouldn't
have anything to do with the contingency matrix, but I thought better to
check first.
[1] http://en.wikipedia.org/wiki/Adjusted_Mutual_Information
Thoughts?
- Robert
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