A new interval constructed belief rule base with rule reliability

Abstract

Abstract Combination rule explosion problem of belief rule base (BRB) is a difficult problem to solve in complex systems and has attracted wide attention at present. Aiming at the problem of combination rule explosion in belief rule base, a new interval constructed belief rule base with rule reliability (IBRB-r) is proposed. On the basis of BRB, IBRB-r innovatively introduced rule reliability and established the belief table in the form of interval. This approach can not only clearly indicate the contribution degree of each rule to the model but also solve the problem of combination rule explosion. Therefore, IBRB-r is more suitable for complex system modeling. In the case study section, the structural safety assessment of liquid launch vehicle is introduced to conduct a concrete example analysis. The experimental results show that the proposed model is effective and accurate.