Managing Linguistically Expressed Uncertainty in MILORD Application to Medical Diagnosis

Article type: Research Article

Authors: Godo, L.L.^; | López de Mántaras, R. | Sierra, C. | Verdaguer, A.^;

Affiliations: Centre d'Estudis Avançats Consell Superior d'Investigacions Cientifiques Blanes, Spain | Institut Municipal d'Investigacions Mèdica, Barcelona, Spain

Note: [] Research partially supported by a CSIC/CAICYT project and by a DEC external research agreement.

Abstract: MILORD is an expert systems building tool consisting of two inference engines and an explanation module. The system allows to perform different calculi of uncertainty on an expert defined set of linguistic terms expressing uncertainty. The different calculi of uncertainty applied to the set of linguistic terms, give, as a result, a fuzzy subset that is approximated to a linguistic certainty value belonging to the set of linguistic terms. This linguistic approximation keeps closed the calculus of uncertainty. MILORD also deals with non-monotonic reasoning in the same framework of uncertainty management. Finally, an application to the diagnosis and treatment of pneumoniae IS presented.

DOI: 10.3233/AIC-1988-1105

Journal: AI Communications, vol. 1, no. 1, pp. 14-31, 1988