查询词典 selection function

Second, according to model characteristic, such as non-linear, non-convex, multiple-peaked and so on, the paper discusses limitation of traditional solving algorithm, such as branch and bound method, GBD method and OA method, puts forward penalty function-makeup integer algorithm and genetic algorithm, analyses procedures of genetic algorithm, such as selection, crossover and mutation, brings forward modifications for specific realized problems of genetic algorithm, such as selection of initial points, operator design, adoptive value adjustment, constraint treatment and so on, and works out correlated solving program.

其次针对该模型非线性、非凸、多峰等特点，讨论了分支定界法、GBD法和OA法等传统求解算法的局限性，提出了罚函数一凑整算法和遗传算法的求解思路，对遗传算法的选择、交叉、变异等过程进行分析，对遗传算法初始点选择、算子设计、适应值调整和约束处理等具体实现问题提出了改进措施，并编制了相关的求解程序。

The heuristic method emploies a genetic algorithm in reducing the redundant attributes of all attributes. Besides taking fitness function as its heuristic function for its selection operation, the genetic algorithm uses the attribute\'s information entropy to construct the heuristic function for its mutate operation, and in this way it markedly elevate the convergence speed of attribute reduction.

启发式方法采用遗传算法进行属性约简，除了存在于选择操作的适应度启发函数外，还在变异操作中以信息熵为基础构造了启发函数；穷举方法基于循环队列自底向上约简，通过剪枝有效地提高了属性约简集的穷举速度。

The parameter selection in many proposed methods in this area is evaluated firstly by defining a discriminability function computing on some synthesized defect images,and thereby an efficient parameter selection method is proposed in real time constraint.

通过定义一个分辨力函数和一些合成的疵点图像，对已有的Gabor滤波器组的参数选择方式做出评价，提出了在实时应用场合有效地确定Gabor滤波器组参数的方法。

It is the first important step in video analysis and will directly affects the effectiveness of indexing Shot boundary detection is one of our major research interests and we will tackle the following existing problems the ambiguity between gradual change and camera motion, the discontinuity during gradual change, false detection caused by illumination variation and flashlight, automatic threshold selection Firstly, we discuss shot boundary detection in non-compressed domain In chapter 2, we compare some of the commonly used detection methods which are based on frame difference and point out that single feature will not generate good results As a conclusion, we use fuzzy logic to combine multiple features Presently, most frame difference based shot boundary detection algorithms rely on threshold and hence the selection of such thresholds will greatly affect the performance of boundary detection We propose a membership function to define frame difference and calculate the membership with self adaptation according to the statistic distribution of frame differences to satisfy different type of video clips Experiments show that the proposed fuzzy shot boundary detection algorithm can be used with different video types and has a high detection precision and recall In chapter 3, we discuss model-based shot boundary detection algorithms regarding chromatic and spatial editing effects such as fade-in, fade-out, dissolve and wipe Various parameters are proposed to better describe the characteristics of each editing type.

镜头边界的检测是把视频自动地分割为一个个镜头，作为基本的索引单元，因此它是视频分析重要的第一步，直接影响到视频检索的成败。镜头边界的检测是本文研究的重点之一。目前镜头边界检测算法主要存在以下问题：渐变与镜头运动难以区别；渐变过程中的不连续与停顿、光照条件的变化及闪光灯等特殊情况会引起误检测；自动选择阈值比较困难等。本文首先针对非压缩域视频进行了镜头边界检测的研究。在第二章中我们采用了比较流行的基于帧间差的方法。在比较各种帧间差计算方法的基础上，指出使用单一的特征难以取得很好的检测效果，提出用模糊逻辑综合使用各种特征。目前大多数基于帧间差的镜头边界检测算法都采用阈值法进行镜头转换的判别。阈值选择的误差对检测性能有较大的影响，本文提出用隶属度函数定义帧间差较大、中等较大和较小等概念，并根据帧间差的统计分布自适应地确定隶属度，以适应不同类型的视频片断。实验结果表明这种基于糊逻辑的镜头边界检测算法可以适应不同的视频，并具有较高的检测精度和检出率。在第三章中采用基于模型的方法进行镜头渐变的检测，研究了淡入／淡出、慢转换和扫换的模型。

Selection and design of the lamp should form a specific combination of space, according to the function space requirements for selection and design.

灯具的选择与设计应该与具体的空间形式相结合，根据空间的功能要求来进行选择与设计。

And then studies on the relevant theories of distribution centers to let everyone know comprehensively, including the concept of logistics and distribution, the concept and development process of distribution center, the classification and function of distribution center, as well as its role. Lately it gives detailed description on the relevant theories of location selection, including the principle and influencing factors of location selection, as well as the steps and general methods of location selection. Finally the paper sums up several methods commonly used at present.

更多配送的概念、配送中心的概念及发展过程、配送中心的分类、功能及其作用；然后研究了配送中心选址的相关理论，包括配送中心的选址原则、影响因素、选址步骤以及配送中心选址的一般方法等部分；最后总结了目前几种常用的选址方法，并在这些理论的基础上，建立了非线性混合0-1规划类型的多配送中心选址模型。

Based on this mechanism, a clonal selection algorithm for multi-modal function optimization has been proposed by formulating suitable clonal selection operators and introducing a new niching technology in this paper.

多目标优化问题的解不是唯一的，而是一个最优解集合。这类问题大多有较高维的搜索空间，传统的优化方法会导致很高的时间复杂性。

For enhancing the system performance, the simple bit-wise indexing method was applied to the manufacturing defect detection problem, time aspect for manufacturing domains. For improving the flexibility and accuracy, the encapsulated bit-wise indexing method is applied to the pattern matching module of an Internet intrusion detection system. To reduce the processing time, the compacted bit-wise indexing method is applied to the data-driven rough-set based feature selection. Additionally, the proposed feature selection method was adopted in a KA project to discover the desired feature sets to construct a CBR system for a world-wide financial group customer relationship management system's loan promotion function.

而这四个实际系统包含应用在制造过程中由於制程时间的问题所产生的产品缺陷之以遗传演算法之制造缺陷侦测系统、应用在网路入侵侦测系统中的入侵模式的挖掘与比对以提升系统弹性及效率、应用在以资料为导向之约略集合论特徵选取技术并使用於知识撷取系统上以节省执行时间及应用在半导体制造过程中用於缺陷侦测的资料挖掘系统以提升系统效能。

But the conventional CoM FA exists some defects, including the selection of potential function of molecular field, the determination of bioactive conformers, the molecular alignment and the selection of variable of molecular fields, etc.

但传统的比较分子场分析方法在具体的实现过程中还存在着一些缺陷和不足，包括分子场势能函数的选择，活性构象的确定，分子的叠合以及分子场变量的选取等等。

Molecular cloning and expression of FKN/CX3CR1 and their mutated counterpartsTo study the evolutionary rule in function from Old World Monkey to Homonid and the role of negative selection sites, possible Darwinian positive selection sites and deletion mutation, full-length FKN/CX3CR1 and mutant gene were obtained by overlapping extension PCR and site-directed mutagenesis.

FKN／CX3CR1分子及突变子的基因克隆和表达克隆旧大陆猴和人猿超科7个物种FKN、CX3CR1全基因及其突变体并进行体外表达，为后续观察FKN／CX3CR1在高级灵长类物种进化过程中免疫学功能的演变并在功能上验证FKN／CX3CR1协同进化以及研究上述位点对FKN／CX3CR1介导的免疫学功能的影响奠定分子生物学基础。

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在，'歼灭战perfuming自己与胡努特，那麼，他来到和SAT 。