粗糙

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。

In this paper a discretization algorithm based on importance of cut point. Firstly, the paper gives some concept of rough set theory:decision table,indiscernible relation,information entropy and condition entropy.

粗糙集理论可以用在数据挖掘的各个阶段，该文研究了粗糙集理论在数据挖掘的数据离散化阶段的应用，并提出了一个新的决策表离散化算法。l 基本概念及离散化问题的描述定义1 。

Rough set theory believes that knowledge is a kind of classification that human and other species inhere.

粗糙集理论认为知识就是人类和其他物种所固有的分类能力，粗糙集的一大优势就是其极强的分类能力[史忠植，2002]。

According to the electric field integral equation of the surface, the recursive solution for the induced current on the slight rough surface is derived using the perturbation expansion of the surface, and the method for computing the interaction field is given.

根据粗糙表面电流积分方程并利用表面微扰展开，得到了微粗糙面表面极化电流的迭代解，给出了耦合电场的计算方法。

Through the analysis of five calculation methods of shear velocity and roughness length (Z0), choose Kerman Prandtl method and log-parabola method as the methods to calculate shear velocity and roughness length.

本文通过对5种计算摩阻流速u*及粗糙长度Z0的方法分析研究，选择卡曼-普朗特方法和对数抛物方法作为本文计算摩阻流速和粗糙长度的方法。

On the generalization of rough set theory, molecular lattice was introduced into rough set theory as the base algebra.

关于粗糙集理论的拓展问题，将分子格引入到粗糙集理论，本文试图将近似算子作进一步抽象与推广。

For better radar emitter recognition,a study is carried out in this paper on the attribute reduction algorithm,which is based on discernibility matrix and logical operation in Rough Sets.

为准确解决辐射源识别问题，研究了粗糙集中基于可辨识矩阵和逻辑运算的属性约简算法，对决策表进行约简，减少了属性个数；并建立了一种基于粗糙集数据处理的雷达辐射源识别模型。

The Choquet upper and lower fuzzy integral i...

所给Cho quet上、下模糊积分是经典Choquet模糊积分在粗糙意义下的扩展形式，能处理粗糙区间数数据源和信息系统的对象。

But the surface roughness marking function conforming to the national standard isn t supported in the AutoCAD software.

表面粗糙度是机械图纸的重要组成部分，但是AutoCAD绘图软件中没有提供符合国家标准的表面粗糙度标注功能。

In the meanwhile,we also establish the boundedness results of the higher order commutators generated by Hardy-Littlewood maximal operator with rough kernels and corresponding fractional maximal operator with rough kernels on MK_~.

同时还建立了Hardy-Littlewood极大粗糙算子和相应的分数次极大粗糙算子所生成的高阶交换子在MK_~上的有界性。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。