How to reason with uncertain knowledge

In this paper two kinds of uncertainty, general and specific uncertainty, are distinguished. General uncertainty denotes an uncertainty about which objects of a class belong to a relation. Sentences in which it occurs can be view as describing incomplete knowledge. An example of such a sentence is: "Most humans have brown eyes". Specific...

Report 88-25 (Reviewed) TUD Faculty of Technical Mathematics and Informatics Heuristic reasoning

In this paper a model for heuristic reasoning with uncertain knowledge is presented. This model is a generalisation of the approach proposed by Clancey (Cla-84, Cla-85). We offer a clear semantics for the model, showing that the heuristic reasoning process can be given a clear probabilistic interpretation.