但，记住，这只是一些粗糙的计算估计。
约简与核是粗糙集理论的两个重要概念，而直接由定义来计算约简与核是一个典型的NP难题。
Reduction and core are two important concepts in rough set theory, while computing reductions and core according to the definitions directly is a typical NP problem.
通过提取直方图的外层，以及计算像素点周围的局部模糊程度来更新粗糙度。
By extracting encrustation of histogram, and calculating partial fuzzy extent around pixels to update the fuzzy roughness.
大多数计算磨削表面粗糙度的理论公式都是基于砂轮表面磨粒与工件表面的几何创成机理建立的。
Most of the theoretic formulas to calculate the ground surface roughness are based on the geometrically generating interaction between grits and workpiece surface.
计算机控制测量，即时给出表面粗糙度参数，测量结果与计量用WYKO轮廓仪比对，结果吻合。
The surface roughness parameters can be measured in the time by a computer. Compared with metrological WYKO profiler, the measured results are consistent.
该文从粒度计算的角度对粗糙集理论的属性约简进行研究，定义了粒度的概念，并在此基础上提出了一种新的属性约简算法。
In this paper, the attribute reduction of rough set is discussed from the viewpoint of granular computing, the concepts of granularity is defined and a new attribute reduction algorithm is presented.
简约的计算是基于粗糙集理论的数据采掘研究的关键问题。
Reduct calculation is the key issue of the research of rough set based data mining.
由于城市道路交通问题具有不确定性和不精确性，故采用基于粗糙集的交通信息提取计算理论建立城市道路行程时间预测模型。
Since urban travel times are stochastic and uncertain, a model for addressing urban travel time prediction by using transport information granular computing theory based on rough set was proposed.
改进了粗糙集一致性水平的计算模型。
Have improved calculation model of the consistency level in Rough Set.
实例计算表明，粗糙神经网络为坡面雨滴溅蚀量预测研究提供了一种有效可行的算法。
The example calculation indicates that the rough neural network is an efficient and feasible algorithm to forecast sloping field rain drops splash-erosion.
考虑到杂质和表面粗糙的散射，运用量子统计的格林函数方法，计算金属薄膜中的电导率。
Taking into account impurities and rough surfaces scattering effects, using the Quantum-statistical Gree's function approach, We calculate the conductivity of metallic film.
采用传统微扰法和基于圆柱曲面修正的微扰法，计算了实际粗糙面掠入射时的后向散射系数，并与有关测量值进行了比较。
Comparison of a set of measured data to numerical computations of the backscattering coefficients for actual natural rough surface by the classical and new perturbation methods were given.
针对故障诊断中计算量大，模式分类复杂的问题，提出了一种基于粗糙集的分形容错故障诊断方法。
To solve the problem of complex computing and classifying of patterns in fault diagnosis, a fractal fault-tolerant diagnosis method based on rough reduction is presented.
虽然偏离值可能不大，但利用对数剖面去计算河底粗糙长度和剪切应力时会引起较大的误差。
The amount of the departure may not necessarily be large, but it results in the larger errors when the profiles are used to calculate the bed roughness length and shear stress.
由计算的不同风速下双站散射系数可知，风速对海洋粗糙面散射特性的影响较大。
From the calculation value, it was known that the wind speed had strong impact on the scattering characteristic of dielectric ocean rough surface.
通过拟合计算结果，得到了峰值反射率、带宽和中心波长与粗糙度的函数关系。
Three functions of peak reflectivity and bandwidth and centroid wavelength related to roughness are obtained by fitting above results.
提出了一种用计算机对铸造表面粗糙度进行数字图像处理和三维参数自动检测的方法。
Based on the digital image processing technique, a method for automatically measuring the three-dimensional parameters of casting surface roughness is put forward.
本文在对粗糙度曲线统计特征分析的基础上，提出了一种接触热阻的计算模型。
A new model of thermal contact resistance based on the statistic characteristic of roughness profile is proposed in this paper.
粗糙集理论是一种新的处理模糊和不确定性知识的软计算工具，在人工智能及认知科学等众多领域已经得到了广泛的应用。
Rough set theory is emerging as a powerful tool for dealing with vagueness and uncertainty of facts, which has important applications to artificial intelligence and cognitive science.
据他所说，他可以从最粗糙的石头里发酵出一种亚力酒，在一整天的计算后喝这种酒来使他的头脑清醒。
It is said of him that he could ferment an arrack out of the roughest of stones, and drink it to clear his head after a long day's figuring.
将广义覆盖粗糙集理论及其计算运用到信息检索模型。
This article applies the generalized covering rough set theory to information retrieval model.
主要介绍了改造仪器的软件部分，包括测量的功能模块、主菜单框图以及粗糙度参数的计算的流程图。
The software part of reforming instrument was introduced, which includes measurement functional module, main menu block diagram and calculation flow diagram of roughness parameter.
粗糙表面的计算机模拟是建立粗糙表面模型进而对粗糙表面间相互作用进行模拟研究的前提。
To simulate the roughness surface is the pre-condition that builds the roughness model and simulates the interaction of two contacted surface.
在烧蚀滞后滚转力矩的计算方法中，本文主要介绍滞后引射率和粗糙度对壁面摩擦系数联合影响的一种快速计算方法。
In the calculations of roll torque of ablation lag, a rapid method for calculating combined influence of ablation injection and roughness on skin friction coefficient is mainly described.
为研究粗糙海面中的岛屿对雷达波传播的影响，本文采用比较简单而又符合实际的模型，计算了电波在粗糙海面条件下，岛屿对雷达波的衍射损耗。
To study the influence of an island on radar based on coast, we utilize simple and realistic model to calculate diffraction loss over an island in the presence of rough sea surface.
本文利用密度泛函方法计算了吡啶和水分子分别吸附于粗糙银电极表面的拉曼光谱强度。
We calculated Raman intensities of pyridine and water adsorbed on rough silver electrodes respectively by using density functional theory approach.
介绍了一种采用计算机控制激光位移传感器在线检测木材机械加工表面粗糙度的新方法。
This paper investigated the possibility of measuring the surface roughness of wood by the laser displacement sensor of the computer control.
计算实例模拟了点接触单峰表面，正弦表面和真实粗糙表面的弹性接触以及有限长滚子线接触等接触问题。
Several cases are presented for point contacts including single asperity, wavy surface and real engineering rough surfaces, and also for finite line contact.
提出一个利用多层膜小角X射线衍射谱衍射峰积分强度计算多层膜界面粗糙度的公式。
A simple formula for calculating the interfacial roughness of multilayer by using the small Angle X ray diffraction curves of the samples is given.
基于随机轨道粗糙度和车桥偶合单元，提出了大跨桥梁移动车辆荷载作用下随机振动的计算模式。
Based on random rail roughness and vehicle-bridge coupling element, a method is proposed for calculating random vibration of long span Bridges under moving vehicles in this paper.
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