- 更多网络例句与全局最大值相关的网络例句 [注：此内容来源于网络，仅供参考]
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By level function,ε-subdifferential, normal cone and dual function, global optimal solutions for a convex function in locally convex topological vector space and a few of equivalent forms on it are obtained. Maximum points are characterized.
讨论局部凸拓扑向量空间中凸函数的全局最优解，用水平函数、ε-次微分及法向锥和共轭函数等工具刻画其最大值点，得到最优解的几个等价形式。
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It is based on the method of modeling mobile voice channel and system identification is made so that the waveform samples are designed in frequency domain with less signal distortion.Then the waveform codebook is gotten by a genetic algorithm which has the maximum Euclidean distance.Thus,the modulation and demodulation are equivalent to the mapping from index to waveforms and from waveforms to index.
提出了对移动话音业务信道建模的思想，通过系统辨识获得模型的频率响应特性，在波形畸变较小的频带范围设计波形频谱，采用遗传算法在时域样本空间全局寻优获得欧几里德距离最大的波形码本，通过码本索引值和波形矢量的映射和解映射来实现数据的调制和解调。
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Methods An unsupervised local and global features extraction method was adopted for the localization of facial features of frontal view face image. First, a threshold was used to segment the image into foreground and background, and the nose was localized by considering the symmetry of the face. Second, Harris operator was adopted to detect interest points in a rectangular area covering all the facial features, and then local maximum of the interest points were detected. And finally, Kmeans clustering method was used to cluster the points and obtain the facial features localization.
针对红外正面脸部图像，采用一种无监督的局部和全局的特征提取方法，首先通过阈值法区分出前景和背景，并根据面部特征对称性在前景中确定鼻区；然后在面部确定一个包含所有特征的矩形区域，利用Harris算子在该区域检测出角点，并找出这些点的局部最大值点；最后用Kmeans方法对这些点进行聚类。
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In the present work,the existence and uniqueness results aboutperiodic boundary value problems for different kinds of the nonlin-ear periodically perturbed nonconservative systems are establishedthrough the discretization technique,under suitable assumptions,by using global inverse function theorem and result about the ex-istence and uniqueness of periodic solution for nonhomogeneouslyfirst order linear periodic boundary value problem.
本文的第一章概述了在讨论原问题解的存在唯一性过程中以及构造和分析相关的数值求解方法时将要用到的全局反函数定理、有关矩阵特征值的若干重要引理、线性常微分方程非齐次周期问题解的存在唯一性定理和单参数影射方法及有关结论，并简单回顾了已有的证明非线性微分方程周期边值问题解的存在唯一性的方法，其中包括谱理论、最大最小化形式方法、摄动技术和全局反函数理论方法，最后，介绍了两类数值求解非线性微分方程问题的方法。
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This paper proposes a new cost function which is based on the likelihood function amplified with a nonlinear function, and the global convergence of this function can be obtained more easily than the original cost function.
本文从参数的最大似然估计出发，采用非线性来放大似然函数并构造一个新的代价函数，该函数能更明显区分局部和全局最佳值。
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The target neuron has the maximal positive neural activity, which is damply promulgated to the whole state space via local lateral connections of neurons.
目标点位置神经元具有全局最大的正活性值，该活性值通过神经元之间的局部侧连接逐渐衰减地传播到整个状态空间，障碍物及其周围区域神经元活性值则被抑制为零。
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This problem translate into includes maximum function Max{0 only, the blame of T} is smooth problem, be not glossy issue to put forward a kind to have global astringent to this 2 rank change algorithm glossily.
该新问题转化为只包含最大值函数max{0，t}的非光滑新问题，对该非光滑新问题提出一种具有全局收敛的二阶光滑化算法。
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The initial threshold could be chosen by using Otsu algorithm, and in the iteration process, an optimal threshold was determined by maximizing the MI between the original image and the segmented image.The effectiveness of the proposed approach was evaluated by applying it to the microphotographic.
首先利用Otsu算法确定全局阈值作为初值，以互信息量为目标函数，在小范围内计算分割图像与原图像的互信息量，互信息量达到最大时的阈值即为最优值，这是将图像配准方法用于分割的一种创新性尝试。
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The main research tasks and results are as follows:(1) Through comparing the stress intensity factor of compact tension specimen calculated by finite element software with the theoretical value, the feasibility of calculating fracture parameters of crack tip in ABAQUS software was verified.(2) The relationship between the elastic modulus of the material and research scale was studied based on deriving the cohesive stress theory and other relevant theories. And the elastic modulus of the material on meso-scale was determined.(3) Global model and sub-model of the finite element were built in th...e macro-scale, and stress-strain field nearby the crack tip was analyzed, and the results show that the detailed stress-strain in the crack tip could be obtained by using the sub-model technique.(4) In meso-scale, the crack growth model was also established by assuming the crack propagating along the grain boundary, and the detailed stress-strain field in the crack tip was obtained.(5) The effect of crack length on Von Mises stress, and maximum principal stress and strain was analyzed in meso-scale when equivalent KI equals 30MPa.m1/2. And the results show that except for crack tip area, the stress-strain distribution in whole specimen is not affected.
主要完成研究内容和取得成果如下：(1)利用有限元软件计算出紧凑拉伸试样的裂纹尖端应力强度因子KI值，其结果与理论值一致，从而验证了利用ABAQUS计算裂纹尖端相关断裂参量的可行性；(2)在研究内聚应力等相关理论的基础上，推导出了研究尺度与材料弹性模量的近似关系，并确定了介观尺度上的弹性模量；(3)在宏观尺度上建立了全局有限元计算模型和子模型，得到了裂纹尖端应力应变场分布，结果表明利用子模型技术获得比较准确的裂纹尖端应力应变场分布是可行的；(4)在介观尺度上利用平均晶粒尺度的方式建立了裂纹沿晶扩展模型，得到了裂纹尖端断裂过程区的微观应力应变场；(5)当应力强度因子为30MPa.m1/2时，分析了介观尺度上在裂纹沿晶扩展过程中裂纹长度对Mises应力、最大主应力和应变的影响，结果表明，裂纹扩展长度对试样整体应力应变分布影响不大，而对裂纹尖端区域有较大影响；(6)介。。。
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By means of gene mutation, several generations of circulation, the cost function with maximum value is the gene with optimal chromosome, and the optimal combination of resonance cavity parameters is obtained through comprehensive optimization.
经基因突变、循环若干代，以最大值的代价函数为最佳染色体的基因，全局优化获得最优组合的谐振腔参数。
- 更多网络解释与全局最大值相关的网络解释 [注：此内容来源于网络，仅供参考]
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uniform：均匀
常规的遗传算法是在空间组合范围内搜索求全局最大值,而且本文预测的目标是预测量与实验量的误差最小,所以构造下面的适应度函数:本文遗传算法程序采用锦标赛(tournament)选择,均匀(uniform)交叉,单点(one-point)变异.