Computational Intelligence

414 Chapter Ten—Performance Metrics

The figures in Table 10.6 tell us that the average estimated cost of each application

of the diagnostic system is $1,026.18. There are two main ways to reduce this average

estimated cost. The first is to reduce the costs for the treatments of the three con-

ditions. We probably have little or no control over those costs, however. The most

obvious way to reduce costs is to lower the costs of missed diagnoses, and the most

obvious place to start is with the misdiagnoses of condition C.

The cost calculations from confusion matrices can be used in a v ariety of ways

to fine-tune a computational intelligence system. For