To solve the problem of complex computing and classifying of patterns in fault diagnosis, a fractal fault-tolerant diagnosis method based on rough reduction is presented.

针对故障诊断中计算量大，模式分类复杂的问题，提出了一种基于粗糙集的分形容错故障诊断方法。

youdao

Reduction and core are two important concepts and significantly applied in rough set.

约简与核是粗集中的两个重要概念，它具有重要的应用。

youdao

Reduction and core are two important concepts in rough set theory, while computing reductions and core according to the definitions directly is a typical NP problem.

约简与核是粗糙集理论的两个重要概念，而直接由定义来计算约简与核是一个典型的NP难题。

youdao

It is the rough size of the deficit reduction package identified by the President in his framework.

WHITEHOUSE: Press Briefing