class of algorithm meaning in English

算法类

A class of algorithms for unconstrained nondifferentiable programming
一类无约束不可微规划算法
Firstly , this thesis introduces the present situation of the research and methods of medical image registration . the major classes of algorithms and relative techniques are reviewed and several specific examples of each class of algorithm are described
本文首先介绍了医学图像配准研究的现状和方法，对各类配准算法及其相关技术进行了综述，并大量分析了各类方法的不同应用实例。
In this paper , a class of algorithms which are update quasi - newton methods for unconstrained optimization as follows : this article consists , of three parts . the first part is the introduction of the quasi - newton methods for unconstrained optimization . the second part is the proof of the global and superlin - early convergence of the generalized - quasi - newton methods . the third part is quasi - newton - non - convex class methods and its global convergence . the main results of the second part are as follows : theorem of global convergence
在第一章中，主要是根据焦宝聪提出的广义拟牛顿算法，对目标函数放宽了条件限制，结合goldstein线性搜索，对一般目标函数进行了收敛性的讨论，其主要结果如下：全局收敛性定理若f ( x )在r ~ n上二次连续可微，有下界，水平集。