极值问题

Simulation result proves that the hybrid algorithm has fast convergence and the partial extremum problem can be effectively avoided.

仿真表明该混合算法收敛速度快，能有效避免局部极值问题。

Simulation results show the convergent speed of the improved network is much better than that of traditional neural network, and can effectively avoid local extremum.

仿真结果表明该改进网络收敛速度明显优于传统网络，能有效避免局部极值问题。

Applying the theorem of alternative of subconvexlike map and other some conclusions, the optimality conditions represented by gradient for the vector extremum problems with generalized inequality constraint are obtained.

在线性拓扑空间中，引入了G-可微函数的梯度的概念，运用次似凸映射的择一定理和其他一些结论，获得了带广义不等式约束的向量极值问题的一种含有梯度的最优性条件。

A sufficiant and neces2 sary condition for a non2negative integral vector ( s1 , s2 ,, sn) to be the score2vector of a double2arc tournament is given out .

刻画了具有固定得分向量的双弧竞赛图数目的生成函数并据此研究了得分向量计数的一些极值问题。

Limits, Continuity, Derivatives, and Integration of Single Variable, Integration Techniques, Applications of Derivatives and Integrals, Infinite Sequences and Series, Multivariable Function and Their Derivative, Multiple Integrals, Integration in Vector Fields.

课程内容：单变数函数之极限、连续、微分、积分，积分技巧，微分与积分的应用，无穷数列与级数，多变数函数之偏微分、可微性，多重积分，极值问题，向量场积分。

The necessary conditions for the optimal plastic design are obtained by means of the Lagrange multiplier method,and then the optimality conditions are derived.

数学上它表述为一个具有不等式约束的泛函极值问题，应用拉格朗日乘子法得到了最优塑性设计的一组必要条件，并由此导出了最优性条件。

Simultaneously, as the self-organization mapping neural network does not has the competitive learning characteristic of an objective function, the method is free from the problem of local extremum.

同时，由于自组织映射神经网络的无目标函数的竞争学习特性，本方法摆脱了局部极值问题。

Existing particle swarm algorithm and its variations converge slowly and get into local extremum easily. Due to this, based on the characteristics of current conceptual designing, an improved particle swarm optimizational model based on dynamic niche is proposed in this paper.

现有的微粒群算法及其变种都有着收敛速度慢、容易陷入局部极值问题，再针对目前创新概念设计的特点，本文提出一种改进的基于动态小生境的微粒群优化模型。

This thesis analyzes the reasons of the local extremum in Mi-based image regitstration, then implemented an improved method, which is integrated previous information to get a more smoothly object function and overcome interpolation artifacts effectively. Experimental results show that this methods registration accuracy is improved and can be applied.

本文分析了基于互信息的图像配准过程中出现的局部极值问题，实现了一种结合先验信息获得更加平滑的目标函数的方法，并通过实验证明了该方法的有效性。

The shortest confidence interval of parameter of Gamma distribution is in practice a question of conditional extremum. It can be transferred to a group of equations that can be solved by a method of numerical value.

Γ分布中未知参数θ的最短置信区间实际上是一个条件极值问题，它能转化成一个方程组可用数值方法迭代求解。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。