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metric function

英 [ˈmetrɪk ˈfʌŋkʃn]

美 [ˈmetrɪk ˈfʌŋkʃn]

网络  度量函数

网络

英英释义

noun

  • a function of a topological space that gives, for any two points in the space, a value equal to the distance between them
      Synonym:metric

    双语例句

    • In this paper, we mainly study the equicontinuous and scattering properties of the continuous semi-flow on a compact metric space, and get the results as follows:( 1) the complexity function defined by spanning set is bounded if and only if the system is equicontinuous;
      本文主要研究了紧致度量空间上连续半流的等度连续性及扩散性的特征。证明了如下结论:(1)用生成集定义的复杂性函数的有界性与其等度连续性是等价的;
    • In order to enhance the robustness of the clustering algorithm, fitness function is devised by Gaussian kernel metric replacing the Euclidean distance. The robustness of the clustering algorithm is analyzed using the influence function of M-estimator.
      为了增强聚类算法的鲁棒性,采用高斯核距离替换欧氏距离设计适应度函数,利用M-估计的影响函数分析了聚类算法的鲁棒性。
    • A modified constrained variable metric algorithm using l_1-penalty function as merit function
      用L1-罚函数作线性搜索函数的一种修正约束变尺度算法
    • The aim of this study is to derive a well-performed image color difference metric, which can accurately simulates the sensitivity function of human vision system, to determine the perceived color reproduction error of complex color images.
      所以,此研究的目的乃一希望植基于人眼视觉机制,推导出得以精确应用于跨媒体复杂影像与其复制品之间的色差评估模式。
    • Another metric TFR is defined and validated about its coherence and particularity in anomaly detection. Finally, the paper introduces other technologies related to anomaly detection, and discusses their supporting function to anomaly detection.
      定义了新的指标,验证了其在异常检测上与以前的指标的一致性和特殊性。本文最后介绍了与异常流量检测相关的其它技术,探讨了它们对于异常流量检测技术的辅助作用。
    • A simple formula of forming metric matrices is put forward. The simple variable matric algorithm produced from the formula is equivalent to the secant method and when the aim function is positive definite quadratic function, it is equivalent to BFGS.
      提出了构造尺度矩阵的一个简式公式,其对应的简式变尺度算法与正割法等价,当目标函数为正定二次函数时简式变尺度算法与BFGS方法等价。
    • Conventional statistical clustering methods usually base on greedy principle. The common Metric for evaluating a clustering algorithm is the likelihood function or perplexity of the corpus.
      传统的统计方法基于贪婪原则,常以语料的似然函数或困惑度(perplexity)作为评价标准。
    • The model based normalized cross correlation coefficient is used as the metric function, and it can distinguish moving shadows from moving objects effectively. The method can also work well without real time background maintenance.
      该方法以基于模板的归一化互相关系数作为度量函数,可以有效地检测出运动阴影和运动目标,而且不需要对背景进行实时维护。
    • This paper gives a new class of variable metric algorithm for nonlinear programing with equality and inequality constraint conditions, and proves that the algorithm in one-step superlinear convergence when the objective function and constraint functions are uniformly convex.
      对带有等式和不等式约束条件的非线性规划给出一类新的变尺度算法,并证明当目标函数和约束函数一致凸时,该算法是一步超线性收敛的。
    • Timing metric function of improved algorithm has the sharp peak that can accurately define the location of timing synchronization.
      改进算法的定时度量函数具有尖锐相关峰值,能够准确的确定定时同步位置。