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The information landscapes for the 3 × 3 function case. (a) 19,683 functions split into 100 classes in the landscape of pairwise information. The positions of the function classes are shown in circles with randomly assigned colors. (b) The same family of functions is clustered into 105 classes (indicated by red dots) lying in the cube of D1, D2, and D3: the landscape of three-way information. All nontrivial functions lie on a plane outlined in blue.
