GERTIS: a Dempster-Shafer approach to diagnosing hierarchical hypotheses
John Yen · Communications of the ACM · 1989
Gertis—a prototype expert system—not only demonstrates the feasibility of applying the Dempster-Shafer-based reasoning model to diagnosing hierarchically related hypotheses, but also suggests ways to generate better explanations by using knowledge about the structure of the hypothesis space and knowledge about the intended effects of the rules.