第三，一个迭代或者阶段的退出标准不完全。
Third, the "exit criteria" for an iteration or phase is not sufficient.
对顺序设计过程中的不完全依赖活动进行重迭设计，对简单的迭代活动进行分解，从而缩短交互和等待时间。
Overlapping design is designed for incomplete dependent design, and simple iterative activities are decomposed to decrease interaction and waiting time.
本文讨论EM算法的收敛性，其中EM算法是不完全数据处理中的一类重要的参数估计的迭代算法。
In this paper we discuss the convergence of the EM algorithm for iterative computation of maximum likelihood estimates when the observations can be viewed as incomplete data.
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