On Information Hiding with Incomplete Information about Steganalysis

Suppose the information hider has a set of information hiding schemes to be employed in the presence of a set of steganalysis detectors. Let the information hider have only an incomplete information about the steganalysis detectors. That is, suppose the probability of the jth steganalysis detector will be used is p j , j =1, 2 ...n, then the information hider only knows the ordering of these probabilities, say, ..