将决策表进行属性约简，值约简。
主要用于求解决策表中的相对属性约简。
属性约简是知识获取中的关键问题之一。
Attribute reduction is one of the key problems for the knowledge acquisition.
对矩阵进行化简得到属性约简并生成规则。
属性约简是知识获取中最重要的部分之一。
Attribute reduction is one of the most important parts in knowledge acquisition.
将属性约简算法与其他算法结合在一起使用。
Connecting the improved attributes reduction algorithm with other algorithms.
属性约简是对大数据集进行数据处理的需要。
It is the need of data processing in attribute reduction about large datasets.
后面又提到了基于信息熵的相对属性约简算法。
And then a relative attribute reduction algorithm is mentioned based on information entropy.
属性约简是粗糙集(RS)理论的核心内容之一。
The attribute reduction is one of the cores of Rough Set (RS) theory.
提出一种基于粗糙集属性重要性的属性约简算法。
Proposed an algorithm of attribute reduction based on attribute importance of rough set.
本文提出了一种新的算法用于粗集中的属性约简。
This paper introduces a new algorithm for reduction of attribute.
首先，研究了在不完备信息系统下的属性约简算法。
Firstly, the attributes reduction algorithm is studied under the incomplete information systems.
讨论几种属性约简定义的代数性质和信息熵改变规律。
This paper discusses algebra properties and changing law of entropy for some attribute reduction definitions.
并在此基础上提出了基于差分演化算法的属性约简算法。
And on this basis, an attribute reduction algorithm based on the improved differential evolutionary algorithm was put forward.
这为不一致信息系统的属性约简提供了理论依据与算法。
These results provide theoretical basis and applied foundation for attribute reduction in inconsistent information system.
为此，设计了一种面向个性化知识发现的属性约简算法。
So a reduction algorithm of attribute for personalized knowledge discovery was designed.
出于应用目的，许多学者提出了各种不同的属性约简概念。
For the sake of different applications, various definitions of attribute reduction have been proposed by different researchers.
最后证明了属性约简在布尔矩阵和代数两种不同表示下是等价的。
Finally, the equivalence properties between Boolean matrix representation and algebra representation of attribute reduction are proved.
在计算属性约简集的基础上，建立了雷达干扰空间的偏序关系矩阵。
Based on the reduction of attribute sets, the partial order relation matrix of radar jamming space is obtained.
知识发现的过程包括时间序列数据预处理、属性约简和规则抽取三部分。
The process of knowledge discovery in time series includes preprocessing of time series data, attributes reduction and rules extraction.
提出约简质量的定义，从属性约简率和近似质量两方面来衡量约简效果。
The attribute reduction quality, which includes reduction ratio and approximate quality, is defined to scale the reduction effectiveness.
传统的利用区分矩阵进行属性约简算法，其时间复杂度和空间复杂度很大。
The time complexity and space complexity of the traditional attribute reduction algorithm using discernible matrix are quite big.
随后论文重点对作者在数据离散和属性约简两个方面做的研究工作进行了阐述。
Then the author's researches on data discretization and attribute reduction are introduced in detail.
将模式聚合和自适应广义粒子群算法相结合，提出了一种文本属性约简新方法。
A new method of text dimension reduction is brought forward, based on pattern aggregation and adaptive general particle swarm optimization (AGPSO).
以扫描向量中的属性频率项作为属性约简搜索的启发信息，提高了属性约简效率。
The item of attribute frequency in the scan vector was taken as heuristic information to improve the efficiency of attributes reduction.
本论文主要讲述数据挖掘中采用粗糙集方法实现数据预处理中冗余属性约简的问题。
This paper mainly discusses topics on solving attribute reduction problems by applying rough set methods in the field of scientific data mining.
本文研究基于对象定向概念格和属性定向概念格协调决策形式背景属性约简的问题。
Basing on the object oriented concept lattice and the attribute oriented concept lattice, this paper deals with approaches to attribute reduction in consistent decision formal context.
文章提出了决策表的区分向量的概念，并给出了利用区分向量进行属性约简的方法。
This paper proposes the concept of the decision table of the attributes reduction, and gives the method of the reducing attributes based on discernibly vector.
并举例说明，对于不一致决策表，其属性约简的代数表示不能用条件信息量来等价表示。
Through examples, it shows that attribute reduction of an inconsistent decision table cannot entirely be represented by conditional information quantity.
并举例说明，对于不一致决策表，其属性约简的代数表示不能用条件信息量来等价表示。
Through examples, it shows that attribute reduction of an inconsistent decision table cannot entirely be represented by conditional information quantity.
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