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Ideally, definitions induced from examples should consist of all, and only, disjuncts that are meaningful (e.g., as measured by a statistical significance test) and have a low error rate. Existing inductive systems create definitions that are ideal with regard to large dis-juncts, but far from ideal with regard to small disjuncts, where a small (large)(More)
Ideally, deenitions induced from examples should consist of all, and only, disjuncts that are meaningful (e.g., as measured by a statistical signiicance test) and have a l o w error rate. Existing inductive systems create deenitions that are ideal with regard to large disjuncts, but far from ideal with regard to small disjuncts, where a small (large)(More)
We describe a notation system for diagramming behavioral contingencies. The system is descriptive. Stimulus functions are not represented with special symbols, such as S(R), S(D), or UCS, but are simply described in terms of the relation between behavior and stimulus change, and the resulting outcome. The system is atheoretical, self-explanatory, and easy(More)
Viewpoints are coherent collections of facts that describe a concept from a particular perspective. They are essential for a wide variety of tasks, such as explanation generation and qualitative model-ing. We have identified many types of viewpoints and developed a program, the View Retriever, for extracting them from knowledge bases, either singly or in(More)