【摘要】 拆卸与或图是拆卸模型中的一种,它的建模过程需要利用多重筛子进行筛选,筛选率的估计是合理安排筛选顺序的前提。本文阐明了采用极大似然原理估计连通性筛子筛选率的方法,分析了估计过程中样本容量的确定、随机样本的产生、导出子图连通性的判定等关键技术。通过预先设定置信度和估计精度,可以获得连通性筛子筛选率的有效估计值。更多还原

【Abstract】 Several sieves are applied during the course of modeling of disassembly AND/OR graph, and the estimate of sieving rate is the precondition of reasonable sieving sequence. Based on maximum likelihood estimate, the estimate method of sieving rate of connectivity sieve was presented. Three key issues in the estimate were analyzed:calculation of sample size,generation of random sample, and recognition of connectivity of induced subgraph. By preassigned credibility and precision, effective estimate of sieving rate of connectivity sieve is achieved.更多还原