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It is improved to solve the prematurely and stagnation problems of traditional Ant Colony Optimization in the paper. First, mean value method is used to update pheromone to avoid premature convergence which leads to non-globally optimal solution. Second, Pheromone is updated by Best Track to speed the rate of convergence which will help to avoid locally optimal solution.

本文针对基本蚁群算法比较容易陷入早熟和停滞,对现有蚁群算法的信息素更新规则进行了改进,一是采用平均值法更新信息素,避免算法过早收敛于非全局最优解;二是采用最佳路径法更新信息素,可加快收敛速度,并使算法跳出局部最优解。

To find the minimum of energy function E is a part of work in the test generation based on neural network.

给出了神经网络测试生成的遗传进化方法的并行实现算法;提出了异步拟牛顿法、异步割线法和异步区间算法等三种异步并行算法,并对每一算法的收敛性及收敛效率做了分析,为神经网络测试生成方法在多机并行系统上的仿真实现提供了新的途径。

Problems that result from high-speed movement of the equipment in measurement unit, including image mistiness, repetition and skip, are deeply analyzed. And the processing time is tested. The result indicates that image processing algorithm is accurate, fast, and robust. The simulation result of fuzzy controller, which is gained through Matlab, indicates that the fuzzy control system can accurately determine cutter's number. The experiment of cutter indicates that the resistance thread can meet the demand.

分析了检测单元中装备高速作业带来的图像模糊和重复遗漏问题,测试了图像处理算法的时间,结果表明设计的算法准确、快速、适应性强;利用Matlab对模糊控制算法进行仿真,仿真结果表明控制算法能准确地确定刀具编号;切破刀具的试验表明设计的电阻丝刀具能满足要求。

Because the implanted hash function of HMAC is implemented as an individual function block, this block could be replaced easily according to the security request. The high capability of withstanding attacks of HMAC-ECDSA algorithm is proved by using modular arithmetic.

从密码学理论分析,HMAC可以使用密钥且HMAC算法的验证只在当时有效;在程序设计中实现HMAC时,可以将嵌入的哈希算法作为一个独立的模块,根据安全强度的需求替换哈希算法模块;在对攻击高抵抗性的证明中,利用模运算对HMAC-ECDSA算法的安全强度进行了验证。

Moreover, their intrinsic connection, advantages and disadvantages were analyzed from the view of multilinear projections, essential differences and their own superiorities between tensor and vector patterns were clarified, and the problems to be solved and future research were discussed.

对现有张量型学习算法进行总结:针对向量模式表示存在的问题,讨论了设计张量型学习算法的必要性和重要意义;从特征提取和分类器设计2个层面,对现有张量型学习算法进行分类和汇总,并着重从多线性投影方式出发,讨论了其内在联系及优缺点;分析了张量模式与向量模式表示间的本质关系及各自优势;探讨了张量型学习算法有待解决的问题及可能的研究趋势。

The methods for enhance the performance of multiplier are analyzed first, including Booth algorithm, Baugh-Wooley algorithm for direct 2's complement multiplication and the way for sign extension prevention when using Booth algorithm. Then the multiplier for both fixed-point and floating-point operation is designed. Finally the iteration algorithm for floating-point division is presented.

首先分析了提高乘法器性能的常用技术,包括Booth算法、直接进行补码乘法的Baugh-Wooley算法、采用Booth算法进行乘法计算时防止符号扩展的方法等,然后讨论了定浮点乘法器的设计,最后讨论了浮点除法运算的迭代算法

In: Proceedings of the 1999 Congress on Evolutionary Computation, Piscataway, NJ: IEEE Press, 1999: 1958~1962.[9] Kennedy J. Small worlds and Mega-minds: effects of neighborhood topology on particle swarm performance. In: Proceedings Congress on Evolutionary Computation, Piscataway, NJ: IEEE Press, 1999: 1931~1938.[10] Peram T, Veeramachaneni K, Mohan C K. Fitness-distance-ratio based particle swarm optimization.

近来性能较为显著的基于PSO算法的改进算法有Thanmaya Peram[10]等人于2003年提出的基于粒子群优化的适应值-距离-比例算法(Fitness-Distance-Ratio based Particle Swarm Optimization, FDR-PSO),在此算法中每个粒子根据一定的适应值-距离-比例原则,向附近具有较好适应值的多个粒子进行不同程度的靠近,而不仅仅只向当前所发现的最好粒子靠近。

The algorithm has overcome some problems of traditional algorithm such as more constraint conditions, depending prior knowledge, calculation complexity and noise susceptibility, and can be applied into the different restored image, and effectively overcomes the difficulties to determine noise-signal power ratio of Wiener filtering.

算法利用微粒群算法的快速搜索能力和模拟退火算法良好的全局收敛性能寻找最佳复原图像,克服了传统的图像复原方法存在较多约束条件、依赖先验知识、计算求解复杂和对噪声十分敏感等不足,能应用于不同类型退化图像的复原,并能有效地解决经典维纳滤波算法噪信功率比难以确定的问题。

An improved artificial neural network model of lowpass filter with combinatorial nonperiodic defected ground structures is developed in this paper.

采用一种改进的人工神经网络反向传播算法,将动量方法和可变学习速度的BP算法结合,并且在每个样本点更新权值和偏置值,这种算法称为动量VLBP算法

By the analyses on the existing detector generating algorithms, we achieved the improvement of the linear time detector generating algorithm, which was widely used at present. The efficiency of the linear algorithm was improved by eliminating the reluctant detectors, and at the same time the improved algorithm was ensured to cover the nonself space as much as possible.

在分析已有的检测器生成算法的基础上,改进了目前使用最多的线性检测器生成算法,通过消除冗余的检测器提高了线性检测器生成算法的效率,同时还保证了改进后的算法能够尽可能多地覆盖"非我"空间。

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推荐网络例句

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力