3.3 separate-and-Conquer approaCh 91
it as the first class for which to generate new rules. The list of accuracy (p/t)
values of the tests for the class is given below:
Tests p/t
Age is young 4/8
Age is pre-presbyopic 5/8
Age is presbyopic 6/8
Spectacle prescription is myope 7/12
Spectacle prescription is hypermetrope 8/12
Astigmatism is no 7/12
Astigmatism is yes 8/12
Tear production rate is reduced 12/12
Tear production rate is normal 3/12
From the list, the test with highest accuracy value (p/t) is “tear production
rate reduced,” which is 12/12. Therefore, the initial condition term of the rule
should be “tear production rate reduced.” Since the accuracy (p/t) value is
100%, we do not need to add more tests to the ...