Improvements on Certainty Factor Model and Its Application to Conflict Resolution in CDPS

摘要

In this paper some improvements on certainty factor model are discussed aiming at:1) including,in a rule “E→H”,not only the CF oh H when E exists but also CF of H when E does not exise(partly of completely).For this purpose another factor CF ys added into the original model;2)inproving the model so that it can tackle problems with unknown evidence.In this aspect two concepts are introduced:(relative)maximum existence risk and (relative) maximum non-existence risk.An important result is that even if some necessary evidence is unknown one can still know the tendency whether the conclusion is true.Based on the improvements a conflict resolution model for problem-level conflict is also presented.