SOME PROPERTIES OF MODIFIED DEMPSTER-SHAFER OPERATORS IN RULE BASED INFERENCE SYSTEMS
Bernard P. Zeigler · International Journal of General Systems · 1988
A modification of the Dempster-Shafer theory of evidence is employed to formulate a computationally feasible approach to evidence accumulation in rule based inference systems. Properties of evidence combining operators are formulated axiomatically and employed to demonstrate the merits of the new approach. A finitary, parametric form of the evidence accumulator is proposed which makes it possible to set the rates at which evidence is accumulated toward certainty and contradiction states. The evidence accumulator appears to solve many of the problems previously encountered with certainty factor algorithms.