CRSL: A Language for Classificatory Problem Solving and Uncertainty Handling

The ability to map the state of an object into a category languages is transforming AI theories into symbolic strucin a classification hierarchy has long been an important tures. This pattern can be seen in knowledge representapart of many fields, for example, biology and medicine. Gordon and Shortliffe, 1985), and has been especially concerned with applying classification to diagnostic problems. One of the problems in classification is that the relationship between observable evidence and categories is often ambiguous. A piece of evidence can be associated with several categories or can occur with a category in an irregular fashion.