查询词典 in the rough

Main topics of this dissertation are as follows:(1) In this paper, we re-interpreted the basic concept of classical rough set theory based on VPRS, we also analyse the features and process of the application of rough set theory in data mining and pointed out the direction of the research.

本文的主要工作包括：(1)在可变精度粗糙集理论下对经典粗糙集的概念进行了重新的诠释；分析了粗糙集理论在数据挖掘应用中的理论根据和基本原理，并点出了研究的方向。

In this paper, granularity in rough set theory is used to describe rules based on the concept of rough degree. A tool for knowledge dependent relation diagram is put forward. Then dimensional knowledge granularity decision space and the same construction mapping decision space based on multi-decision sorts is established, and decision algorithm based on KDRD and decision space is introduced. Finally, through combining with the technique of fault diagnosis, it is proved that the approach is very appropriate to the intelligent decision system.

本文利用粗糙集理论中的粗度概念，在对获取规则进行扩展性的粒度描述的基础上，提出了一种工具―知识依赖关系图，构造了n维知识粒度决策空间以及基于多决策类的同构映射决策空间，建立了基于KDRD和决策空间的决策算法，并结合机械故障诊断说明了本方法非常适于故障诊断等通过结论获取原因的智能决策系统。

Rough set theory and factor space are all applied worldly. The partition determined by equivalence relation is the same as knowledge in rough set theory, that is, knowledge is regarded as a partition of data.

粗糙集理论和因素空间在各个方面有着广泛的应用，由于粗糙集理论将等价关系对空间的划分与知识等同，即将知识理解为对数据的划分，任何U的子集称为U中的一个概念或范畴。

The uncertainty measure for rough sets is one of the key problems in rough set theory.

粗糙集的不确定性度量是粗糙集理论中的关键问题之一。

Finally, base on research of genetic algorithm and rough sets, analysis of the existing primary algorithm of attribute reduction based on the traditonal genetic algorithm, an improved algorithm of rough set attribute reduction base on dependability and genetic algorithm is presented in this paper.

最后，对遗传算法和粗糙集理论研究的基础上，通过分析现有的约简算法，提出一种基于依赖度的属性约简改进算法，改进后的算法可以求取属性的一个约简。

Finally, some properties of rough set in quotient group are given and proved. The fourth chapter is the Roughness of Ring based on Ideal, a rough subring with respect to a ideal of a ring is discussed, and some properties of the lower and the upper approximations in a ring are studied.

最后，在商群中讨论了粗糙集的一些性质，并给出这些结论的严格证明；第四章是基于理想的环的粗糙，对一个环的子集关于理想的粗糙近似子环作了探讨，并研究了一个环的上、下近似的性质。

It is stronger than pointwise rough and weaker than the strong rough in roughness.

它在粗性概念上强于点态粗而弱于强粗。

4He am storing on a raised plattom in a corner of the room.he am a wizened old man dawn wrinkled expression or a sad expression.over his willer am thrhave a rough brhave coat,whichle torn or full of holes,his thick boots were old or patched ;or dawn first hor he leant on a rough stick,when dawn the other he held away his battered hat to mfirsty.

他站在屋子角落唯一支高的台子上，他是唯一老人，满脸的皱纹和悲伤的表情。他的肩膀上搭着一件粗糙，破烂的棕色外套，他的厚靴子上也打了补丁，他用唯一手倚着一根拐杖，另一只手拿他的破帽子讨钱。

Fuzzy sets and rough sets are means handling on fuzzy and indetermination. Today, fuzzy set theory, and rough set theory are combined in mathematics, and the combination is been adverted more and more by international academy.

二者是处理Fuzzy性和不确定性的数学工具，将二者结合起来研究，近年来越来越受到国际学术界的关注。

In order to resist the noise data, Variable Precision Rough Set Theory was proposed. In this paper, the Variable Precision Rough Set Theory is applied to judge the development degree of a region. It can resist the interference of the noise and get simple rules, but does not change the ability of assorting.

为了提高在实际应用中对噪音数据的适应能力，Ziarkio提出了可变精度粗集理论，本文把可变精度粗集理论应用在一个判断地区综合发展程度的系统，实现了抗噪音的干扰，同时也大大简化了原始数据集。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。