Is Bayes' Rule Truly the Best?
Optimality of Always Predicting the Most Likely Outcome
Example of Turning Conditional Distributions Around
Another source for more formal definition and Proof of the optimality of the Bayes classifier
http://www.stat.purdue.edu/~jianzhan/STAT598Y/NOTES/slt01.pdf --Yuanl 14:09, 1 March 2010 (UTC)