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中文摘要：
尽管基于优势的不平的集合途径为知识发现被用于珍视间隔的信息系统，传统的优势关系不能被用来以一些目标描述优势原则的度。在这份报纸，珍视间隔的数据的一个评价方法被用来在珍视间隔的信息系统描述优势的度。因此，模糊不平的技术被采用构造不平的近似向上并且向下决定班的工会，从哪个能至少并且至多从珍视间隔的决定系统与必然因素导致决定规则。一些数字例子被采用证实概念的争论。
英文摘要：
Though the dominance-based rough set approach has been applied to interval-valued information systems for knowledge discovery, the traditional dominance relation cannot be used to describe the degree of dominance principle in terms of pairs of objects. In this paper, a ranking method of interval-valued data is used to describe the degree of dominance in the interval-valued information system. Therefore, the fuzzy rough technique is employed to construct the rough approximations of upward and downward unions of decision classes, from which one can induce at least and at most decision rules with certainty factors from the interval-valued decision system. Some numerical examples are employed to substantiate the conceptual arguments.
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