Therefore, incomplete information systems need be directly operated.
为此有必要直接对不完备信息系统进行处理。
Firstly, the attributes reduction algorithm is studied under the incomplete information systems.
首先，研究了在不完备信息系统下的属性约简算法。
Tolerance relation is an effective tool in patulous rough set theory to deal with incomplete information systems.
在扩充粗糙集理论中，容差关系是一种处理不完备信息系统的工具。
Secondly, a knowledge acquisition model for the incomplete information systems for the university personnel system on the basis of the tolerance relation assignment reduction using GA is designed.
其次，设计了一个基于本文提出的基于相容关系的分配约简遗传算法的高校人事不完备信息系统的知识获取模型。
As minimum knowledge units, maximal consistent blocks are very useful for knowledge representation, attribute reduction, granular analysis and knowledge acquisition in incomplete information systems.
极大相容块是非完备信息系统中的最小知识单元，在非完备信息系统的知识表示、属性约简、粒度分析及知识获取方面有重要的应用价值。
Sales information was lacking, or at best old and incomplete, and the legacy systems were unable to support products and pricing.
销售信息十分匮乏，或是十分陈旧并且不完整，遗留系统无法支持产品和定价。
Because of general phenomena of indefinite data or even imperfect existing, information systems that are presented to user are mostly incomplete.
在现实生活中，由于数据的不确定甚至缺损现象的普遍存在，使得数据库使用者面临的信息系统绝大多数都是不完备的。
The classical rough set theory based on complete decision information systems is greatly restricted in incomplete decision information systems.
决策信息系统分解作为一种数据转换方法，对于处理数据的海量性和复杂性，提高分析效率和质量有积极的作用。
The classical rough set theory based on complete decision information systems is greatly restricted in incomplete decision information systems.
决策信息系统分解作为一种数据转换方法，对于处理数据的海量性和复杂性，提高分析效率和质量有积极的作用。
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