查询词典 asymptotic convergence

It can significantly prevent precocity, then make a balance between accelerating convergence and averting precocity as well as stagnation.

该算法能明显的防止蚁群算法可能出现早熟的问题，从而解决了传统蚁群算法加速收敛与早熟、停滞现象的矛盾。

To settle the contradictory between convergence speed and precocity and stagnation in ant colony algorithm, an adaptive ant colony algorithm, which is based on the equilibrium of the ant distribution, is presented.

针对蚁群算法加速收敛和早熟停滞现象的矛盾，提出一种基于分布均匀度的自适应蚁群算法，以求在加速收敛和防止早熟、停滞现象之间取得很好的平衡。

The newly proposed prepotency evolution algorithm based on the concept of "prepotency"has a higher convergence speed comparing to the conventional genetic algorithm.

尤其是在对大气寿命的预测上，由于数据结构不好，传统遗传算法很容易产生过拟合现象，但混沌突变的遗传算法很好地避免了该现象的发生。

To take advantage of the chaotic mapping, a repetition prepotency evolution algorithm with a population initialized by chaotic numbers is developed in which the chaotic mapping is an uncommon seeding-machine to produce different initial'chromosome'populations never appeared before for PE algorithm. The combination of chaotic mapping and PE makes PECA be able to probe lots of optima rapidly and effectively owing to the quick convergence speed of PE and relatively high population diversity guaranteed by chaotic mapping.

结合混沌来初始化优势进化算法的群体成员，还设计了基于混沌初始化群体成员的循环优势进化方法，该方法在混沌保证每次优势进化绝对不同的初始群体成员的情况下，不仅具有了优势进化的快速收敛优点而且有混沌映射保证群体成员的高度多样性，从而可以快速探测很多局部最优点，大大提高了找到全局最优点的机会，用它训练神经网络预测四卤化物振动频率研究充分体现了该策略的优越性。

Using panel unit root test, this paper studied the convergence of regional relative price level and the degree of domestic market integration, and analyzed the factors that affect presidial market integration.

本文采用面板单位根检验方法研究了中国内地31个省区相对价格收敛与国内市场整合情况，并探讨了影响国内市场整合的因素。

A 5-layer numerical model with p-σ incorporated coordinate system and primitive equation is used to simulate the effects of convergence flow anomaly over the Northeast Pacific on the subtropical high over the West Pacific ocean.

1 引言西太平洋副热带高压是东亚季风系统的重要成员之一。夏季我国东南部地区旱涝天气的出现往往和西太副高的异常进退密切相关。

The results of experiment show that the proposed method, even without any knowledge of diversion probability's prior distribution, has favorable convergence and robustness in finding the optimal solution.

试验结果表明，该方法无需知道转移概率的先验分布，在解空间的全局寻优时具有良好的收敛性和鲁棒性。

Some convergence results of the gradient projection method under milder conditions are obtained.

进一步给出了目标函数f是凸函数和拟凸函数时的更强的收敛性结果。

In Chapter 5, the authors study the convergence properties of the gradient projection method for the constrained optimization problem. In this chapter, a new step-size rule, which avoids fulfiling the classical line search and includes choosing a constant as the step size as a special case, is presented and analyzed.

第五章研究了求解约束最优化问题的梯度投影方法，在步长的选取时采用了一种新的策略，这种策略不需要进行传统的线搜索且包含步长取常数这种特例，在较弱的条件下，证明了梯度投影方法的全局收敛性。

But the projection used in gradient projection method is an orthogonal projection which does not contain the second derivative information of objective and constrained functions,thus the convergence rate of gradient projection method is not contented.

但是，梯度投影法所采用的投影是正交投影，不包含目标函数和约束函数的二阶导数信息·因而；收敛速度不太令人满意。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。