1) trust region method
信赖域法
1.
Trust Region Method of Implicit Nonlinear Model s M-estimate and Statisticians Property;
隐非线性M估计的信赖域法及其统计性质
2.
Under the trust region method and by using optimized thought this paper gives an example of approximate solut.
利用优化思想,给出了在信赖域法下求数值化正解的近似解的算例。
3.
Furthermore,analyses were made of the improved genetic algorithm,trust region method for hydraulic calculation,construction of fitness function,genetic operator,and technology of integer-coding,etc.
进而对遗传算法改进方法、水力计算的信赖域法、适应度函数的建立、遗传操作和整数编码技术等进行分析,并以一个典型的工程案例进行验证。
2) trust region algorithm
信赖域法
1.
In this paper we study the problem that linearized constraint is infeasible in trust region of trust region algorithm for equality constrained optimization.
本文研究了约束优化信赖域法中的线性化约束条件在信赖域内无解的问题。
3) trust region algorithm
信赖域算法
1.
A Trust Region Algorithm for a Class of Composite Nonsmooth Optimization Problems;
一类复合不可微规划的信赖域算法
2.
In view of trust region algorithm has good global convergence for solving non-linear quadratic programming problem,the effective elastic module s damage factor and the damage distribution function is introduced by FEM updating.
鉴于信赖域算法在求解非线性二次规划问题中具有良好的全局收敛特性,同时结合有限元模型修正技术,引入有效弹性模量损伤因子和损伤分布函数的概念,在Matlab编程环境下调用ANSYS有限元程序中的APDL语言进行桥梁空间结构的有限元建模,利用信赖域算法调整局部单元(组)的参数,通过连续损伤分布插值多项式拟合连续区段各单元(组)的损伤分布曲线,进而实现了对连续梁桥的动力损伤识别。
3.
By calling subprogram of ANSYS and using trust region algorithm,parameter identification of transverse coupling stiffness of plate girder bridges is realized.
文结合有限元模型修正技术,通过ANSYS有限元程序进行桥梁结构的有限元建模,引入信赖域算法调整参数,实现了对空心板桥铰缝横向连接刚度的参数识别,数值算例表明该方法能正确、有效地进行桥梁结构的有限元模型的参数识别,并有一定的抗噪声能力。
4) trust region method
信赖域方法
1.
By using a modified BFGS formula,a BFGS-type trust region method with line search technique for unconstrained optimization problems is proposed.
利用一个修正的BFGS公式,提出了结合线搜索技术的BFGS-信赖域方法,并在一定条件下证明了该方法的全局收敛性和超线性收敛性。
2.
This paper presents a new self-adaptive trust region method for system of nonlinear equations and proves the global convergence and convergence rate under mild conditions.
提出一种新的求解非线性方程组问题的自适应信赖域方法。
3.
A combined algorithm based on trust region method and gradient method is proposed.
提出一种由信赖域方法和梯度法相结合的求解Fermat场址问题的新算法。
5) trust-region algorithm
信赖域算法
1.
This paper describles a new trust-region algorithm for nonlinear constrianed optimization least-squares prob- lems.
针对非线性约束优化最小二乘问题,提出了一种新的信赖域算法。
2.
A new BFGS-trust-region algorithm which ensures a positive update matrix was given.
给出能够保持校正矩阵是正定的新的 BFGS信赖域算法 ,以及该算法的全局收敛性和其二次收敛速度 。
3.
The upper problem is solved by combining the sensitivity analysis method and the trust-region algorithm,while the lower model is solved by the affine scaling interior point algorithm.
对于上层问题,将灵敏度分析方法和信赖域算法相结合,得到一种高效算法。
6) trust region algorithm
信赖域方法
1.
In the first part, two trust region algorithms for linearly constrained optimization problem are proposed 1)Combining quasi-Newton and trust region method for linearly equality constrained optimization is given , its global convergence and super-linear rate is proved.
本文共分两部分,第一部分给出了线性约束优化问题的两个信赖域算法:1)线性等式约束优化问题的组合拟牛顿法与信赖域方法,讨论了算法的全局收敛性及其超线性收敛性。
2.
Trust region algorithm is anot.
而信赖域方法是另外一类解决非线性规划问题的行之有效的方法,该方法利用f(x)的更合适的模拟,二次模型作为目标函数,在一个事先确定好的区域内求解,无需对步长作进一步的一维搜索。
3.
Considering the algorithms for the nonlinearly constrained optimization problems, it focuses on researching the sequential quadratic programming (SQP) and trust region algorithm, which have a lot of successful results.
对于求解非线性约束最优化问题算法,我们研究了序列二次规划(SQP)和信赖域方法,这两种算法都具有快速收敛性质和丰富的研究成果。
补充资料:超导电性的局域和非局域理论(localizedandnon-localizedtheoriesofsuperconductivity)
超导电性的局域和非局域理论(localizedandnon-localizedtheoriesofsuperconductivity)
伦敦第二个方程(见“伦敦规范”)表明,在伦敦理论中实际上假定了js(r)是正比于同一位置r的矢势A(r),而与其他位置的A无牵连;换言之,局域的A(r)可确定该局域的js(r),反之亦然,即理论具有局域性,所以伦敦理论是一种超导电性的局域理论。若r周围r'位置的A(r')与j(r)有牵连而影响j(r)的改变,则A(r)就为非局域性质的。由于`\nabla\timesbb{A}=\mu_0bb{H}`,所以也可以说磁场强度H是非局域性的。为此,超导电性需由非局域性理论来描绘,称超导电性的非局域理论。皮帕德非局域理论就是典型的超导电性非局域唯象理论。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条