Local coherence of conditional probability assessments: definition and application
Andrea Capotorti, S. Tognoloni, Barbara Vantaggi · 1999
In this paper we face the problem of checking the coherence of a conditional probability partial assessment (i.e. defined on a domain without structure). A procedure known in literature has the drawback to introduce, in the worst cases, a so hight number of unknowns to become impossible to apply. Hence we introduce properties, bases on the new notion of local coherence, that, when satisfied by the assessment, allow to reduce the cardinality of domain under investigation. Once the domain is reduced the already known procedure can be applied. Since these reduction rules are based on the local coherence, the correctness is guaranteed and we prove also the efficiency of a computational strategy based on them.