关键词: 模型修复, 可达活动图表, 最优对齐, 直接跟随活动, 偏差子结构

Abstract: The consistency performance between the event log and the business process can be improved by model repair reasonably adjusting the deviation behaviors.The deviations observed the event log are repaired in a self-loop insert way,so the improvement of fitness will be prioritized over precision.To obtain the nonreplayed behavior mode between event log and process model,the reachable activity structure was divided into several fragments and the conformance was checked according to the behavior relationship.The optimal alignment produced by the behavior patterns during replay was used to detect the occurrences,locations and potential behavior relationships of deviations.Furthermore,the directly following deviation elements  were constructed into repairable substructure.Therefore,the precision could be improved by reducing the number of deviations in the event log.M-repair plugin was applied to evaluate different data sets,and the result showed that the precision was significantly promoted ensuring the fitness compared with the existing method.

Key words: model repair, reachable activity graph, optimal alignment, directly following deviations, deviation substructure