Conflicting treatment model for certainty rule-based knowledge

摘要

The rule-based knowledge based expert system has traditionally emphasized the verification of structural errors in the rule base. For conflicting or overlapping rules, designated rules are usually followed to implement prioritized or direct deletions. However, there exist no proper methods by which to resolve conflicts, inconsistencies or redundancies in values. The citation of erroneous knowledge can lead to mistakes in reaching decisions.This study proposes the conditional probability knowledge similarity algorithm and calculation system. The calculation system can quickly and accurately calculate rule-based knowledge similarity matrices and determine the conflicting or overlapping rules. Employing the group decision idea, an algorithm is provided that uses a “reliability factor” to refer to the reliability level of the knowledge item with a conflict, redundancy or inconsistency in value, and constructs a conflict treatment model for certainty rule-based knowledge.Most users, 94% report perplexity at the moment that conflicting or redundant rules are cited. Moreover, 92% of users hold that the algorithm is helpful to knowledge application and as an aid to the decision-making process. It can more effectively prevent mistakes in decision making and enable users to acquire more benefits from the knowledge application.