Geometric Comparison of Clarifications and Rule Sets

T. J. Monk, R. S. Mitchell, L.A. Smith, and G. Holmes

We present a technique for evaluating classifications by geometric comparison of rule sets, Rules ~e represented as objects in an n-dimensional hyperspace. The similarity of classes is computed from the overlap of the geometric class descriptions, The system produces a correlation matrix that indicates the degree of similarity between each pair of classes. The technique can be applied to classifications generated by different algorithms, with different numbers of classes and different attribute sets. Experimental results from a case study in a medical domain are included.

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