Photon-site entropy

We note that the first sum in Eq. (45a) has the form of the negative of an entropy [see Eq. (39)]. This entropy will be called photon-site entropy because it involves the df sites zm. Likewise the second sum in Eq. (45a) is the negative of empirical entropy, in that it involves the empirical data mm. Hence, overall, estimator (45a) is one of minimum photon-site entropy plus minimum empirical entropy plus maximum Jaynes entropy (third sum). 

In the limiting case of no prior data, all mm = 0. This describes zero prior knowledge by MacQueen and Marschak s criterion. Then Eq. (45a) becomes a principle of minimum photon-site entropy,... 

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