查询词典 niching

A modified niching PSO based on the hill valley function is proposed.

主要研究工作包括以下几个方面。1。

Some techniques, such as niching technology based on sharing scheme, tournament selection with elitism, and uniform crossover, are used to improve the performance of GA and MGA.

采用均匀交叉算子、复制与联赛相结合的选择算子，以及基于共享机制的小生境技术可以大大提高遗传算法的性能，加快算法向最优结果的收敛。

Testing of the algorithm by using three benchmark functions indicate that the modified niching PSO has better performance than standard Niche PSO in terms of the stability, convergence and coverage in searching a better value.

对3个常用的基本测试函数的实验表明，新算法在多峰函数寻优中解的稳定性、收敛性和覆盖率均优于标准NichePSO。

The model was based on genetic tabu algorithm of global search and BP global network of local search precision features, combined genetic tabu algorithm and BP algorithm, and used genetic tabu algorithm initial weights of BP network, at the same time,used niching technology to improve genetic tabu algorithm.

该模型基于遗传禁忌算法的全局搜索和BP网络局部精确搜索的特性，将遗传禁忌算法和BP算法有机结合，利用遗传禁忌算法优化BP网络初始权重，同时引入小生境技术改进遗传禁忌算法。

For the usual algorithm of deciding the initial structure of Elman depends on expert knowledge, an improved species niching PSO was presented in order to optimize the structure and parameters of Elman simultaneously. From the results obtained in this thesis, the improved PSO algorithms based Elman neural networks are of excellent performance. The improved PSO algorithms have strong global search ability while improving the convergence speed and accuracy so that it can be used in various fields.

通过本文的研究可以看出，将改进的PSO算法应用于Elman网络的设计具有很好的性能，两种改进PSO算法不仅具有很强的全局搜索能力，而且在收敛速度和精度上有了明显的提高，它们不但在Elman网络权值学习中获得很好的训练精度，还具有一定的普遍适应性，可以用来解决其它组合优化问题。

In the process of the global search, as a niching genetic algorithm, crowding operator accepts the winner of the similar parent and offspring as a member of the next population based on Pareto dominance.

摘 要：分析了现有的约束优化进化算法的一些不足之处，提出了一种处理约束优化问题的新算法。

They succeed by niching themselves.

因为善于在自然界找寻适于自己的位置，这些蝙蝠才能成功地生存下来。

A modified niching Particle Swarm Optimization algorithm was constructed which allowed unimodal function optimization methods to efficiently locate all optima of multimodal problems that the Niche PSO cannot reach.

针对小生境微粒群算法在处理复杂多峰函数优化问题中存在的一些缺陷，提出一种改进的小生境SNPSO算法。

By the method of dividing niches,niching particle swarm optimization has kept the diversity of species,overcome the drawback of basic PSO,such as being subject to falling into local optimization and having the poor convergence speed,and so improved the ability of seeking global optima.

小生境粒子群算法通过划分小生境的方法，保持了物种的多样性，克服了粒子群算法容易陷入局部解，后期收敛速度慢的缺点，提高了算法的全局寻优能力。

A new particle filtering algorithm was proposed, which introduced Swarm Intelligence niching technique into particle filtering in order to enhance particles diversity and search ability and convert above issues into a multi-modal optimization so that measure information is fully. As a result, particles can move towards the high likelihood areas which increase precision for system state estimation.

提出了一种新的粒子滤波算法，将群智能算法中的小生境技术引入粒子滤波中，增强粒子的多样性和寻优能力，同时将上述问题转化为多模寻优问题从而充分应用观测信息，使得采样后的粒子朝着高似然区域移动，从而有效地提高系统状态估计精度。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了