查询词典 convergence behavior

The traditional genetic algorithms have a set of relatively perfect algorithm systems and have been applied in many optimization problems successfully, but there still exist some drawbacks such as lack of local search ability, premature convergence and random walking etc in the algorithms themselves, which lead to the weak capability of convergence.

传统的遗传算法虽然在理论上已经形成了一套较为完善的算法体系并在许多优化问题中都有成功的应用，但其本身还存在一些不足，例如局部搜索能力差、存在未成熟收敛和随机漫游等现象，从而导致算法的收敛性能差。

The global convergence and the convergence speed of ANGA are more satisfier than SGA.

并进行了仿真实验，将由ANGA优化的负荷分配结果与经验负荷分配结果进行了比较。

In this paper,fuzzy complex numbers,limits of the sequence of fuzzy complex numbers,the metrical convergence and levelwise convergence,the continuity offuzzy complex functions,the calculus of fuzzy complex functions,theseries whose terms are fuzzy complex numbers,the series whose terms arefuzzy complex functions,the fuzzy complex measure and fuzzy differentialequation are investigated in details.All this may be a foundation forfurther researching fuzzy complex analysis.

本文对模糊复数、模糊复数列的极限、度量收敛与水平收敛、模糊复函数的连续性、模糊复函数的微积分、模糊复数项级数、模糊复函数项级数、模糊复测度及模糊微分方程理论进行了详细的研究，为模糊复分析的进一步研究打下一定基础。

This paper discusses convergence of Ishikawa iteration sequence and existence of fixed points for set-valued nonexpansive mapping in uniformly covex Banach space, and the conditions are shown which guarantee the convergence of the iteration sequence to a fixed point.

讨论了δ集值非扩张映象在一致凸Banach空间中不动点非空的充分必要条件与Ishikawa迭代序列的收敛性及确保迭代程序收敛到不动点的条件，所得结果是单值非扩张映象的推广和发展。

A new mathematical model of intelligence test paper generation system was set up. To avoid slow-convergence and local convergence of simple genetic algorithm, a kind of improved genetic algorithm was proposed in this paper.

建立了一种新的试卷矩阵数学模型，提出了改进的遗传算法编码方式，并通过改进初始群体的产生方法和遗传算子，有效提高了遗传算法的收敛速度，并较好地避免了局部收敛现象。

Aiming at the disadvantage of conventional BP neural network, such as selecting parameter values by the empirical method, slow convergence speed and easy trap into local minimum points, this paper designs an improved BP neural network system. In order to improve the network convergence rate and reduce the training error, this paper optimizes the initial connecting weight value of neural network by the use of ant colony algorithm and trains artificial neural network by Levenberg-Marquardt algorithm.

针对常规BP神经网络参数的经验式取值方法以及收敛速度慢，容易陷入局部最小点等缺陷，设计了一种改进的神经网络系统，利用蚁群算法优化神经网络连接权初值，并采用LM算法对人工神经网络进行训练，提高了网络的收敛速度，降低了训练误差。

Results:① Thin-slice reconstruction, MPR and VR provided higher detecting rate of small peripheral pulmonary adenocarcinonia signs than conventional axial images, including lobulation, spiculation, pleural indentation and bronchovascular convergence;② MPR and VR was superior to axial thin-slice reconstruction in judging the presence of the vacuolar sign, air-bronchogram and bronchovascular convergence.

结果：①64层CT薄层重建、MPR及VR在显示肺小腺癌的分叶征、毛刺征、胸膜凹陷征及支气管血管集束征方面优于常规横断面；②MPR及VR对于空泡征、支气管气相和支气管血管集束征的判别有优势。

Theoretical analysis and a lot of practical examples show that the convergence of this algorithm is very stable, that its convergence rate is very fast, and that it can also give accurate calculation of the value of the pressure loss.

理论分析和大量实际算例表明这种算法具有非常稳定的收敛性和非常快的收敛速度，并且能够给出压降的精确计算值。

The new algorithm has better performance in stable convergence rate, convergence speed, and threshold sensitivity compared with traditional fuzzy clustering algorithm.

该算法在收敛稳定性、收敛速度、初值敏感性方面，相对于传统模糊聚类算法有了明显改善，相关实验表明，该算法具备高效、稳定的工程应用价值。

The results show that the present convergence rate of the India plate is 21.8 mm/a with a dipping 8.1°to the north. This is in good agreement with various geologic predictions of 18mm/a in past 2～3 million year implying a stable convergence rate of the India plate in a very long duration.

本文 结果与从地质推断的在过去2～3Ma时期内，印度板块向欧亚大陆俯冲速率平均为18mm/a，有较好的一致性，表明在较长时间内，印度板块向欧亚大陆俯冲的速率仍然是稳定的。

The quality of both red and white wine depends very much on the wine maker talent and on the quality of the grapes.

他的红酒和白酒的品质，根据酿造者的能力和葡萄的质量，各有差异。

No, I don't want to get drunk before my next match.

" "不，我不想让我的下一场比赛前喝醉了。