metric function
英 [ˈmetrɪk ˈfʌŋkʃn]
美 [ˈmetrɪk ˈfʌŋkʃn]
网络 度量函数
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
双语例句
- 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 - In metric space, by means of discussing boundedness of a function on a neighborhood of accumulation points of a sequential compact set S, give a way of judging boundedness of a function on the whole set S.
在度量空间中，通过对函数在一个列紧集S的聚点附近的有界性讨论，给出了函数在整个点集S上有界性的判定方法。 - Multiscale information fusion halftone method, mixed error measure function of the establishment of multiscale wavelet coefficients fusion to establish the boundary error measure function and improved K-means clustering method to establish the area error metric function.
在多尺度信息融合的半色调方法中，混合误差测度函数的建立是利用多尺度小波系数融合建立的边界误差测度函数和改进的K-means聚类法建立的区域误差测度函数。 - 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。 - 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。 - With the best polynomial approximation as a metric, the rate of approximation of the neural networks with single hidden layer to a continuous function is estimated by using a constructive approach.
以最佳多项式逼近为度量，用构造性方法估计单隐层神经网络逼近连续函数的速度。 - Therefore, the better adaptive margin metric ( named separation) and the fuzzy weighting technique were introduced for developing the new optimal objective function.
为此，引入一个具有更好适应性的度量（称为分离度）和模糊加权技术构造新目标函数。 - This paper made a metric model of China life insurance demands function and imputed the income elasticity of China life insurance demands on the basis of the principles of life insurance and methodology of econometrics.
本文运用保险学原理和计量经济学分析方法，建立了我国寿险需求函数的计量模型，并估算了我国寿险需求的收入弹性。 - 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。 - The conception of the covering numbers and the packing numbers and the metric entropy on a metric space were introduced, and the conception of the random distance and the random covering numbers and the random entropy on a function space were introduced.
介绍了一般度量空间中覆盖数、包容数与度量熵的概念以及函数空间中随机距离、随机覆盖数与随机熵的概念。