查询词典 numerical algorithm

Combining the shortcoming of multi-objective evolutionary algorithm based on the idea of objective space dividing with high calculation complexicity, this paper proposed an improved new algorithm which processed following characters: transforming the dominance relationship among individuals' Pareto to the rank relationship of sum index of interval in dividing space; simple and efficient environmental choosing method based on index ranking; an individual crowding algorithm which rapidly choosing the nearest to origin.

针对现有基于目标空间分割思想的进化算法计算时间复杂度高的缺陷，提出了一种改进的基于目标空间分割的多目标进化算法。该算法具有以下特点：把个体之间的Pareto支配关系转换成分割区间索引值排序关系的目标空间分割算法；简单高效的基于区间索引值排序的环境选择算子；一种快速的优先选择最接近分割区间原点的个体拥挤机制。

The experiment proved that after the process of adopting improved selection algorithm, searching algorithm, integral transfer and quantity, the complication of calculation is decreased greatly. This method advanced the coding efficiency of video compressing. Finally, this paper is presented summarizer and future prospects the H.264/AVC algorithm.

实验证明，在采用改进的选择算法和变换与量化过程后，在视频图像信噪比基本上不变的情况下，运算复杂度大大降低，提高了视频压缩编码效率。

It is compared with basic particle swarm optimization algorithm and genetic algorithm.Results prove that this algorithm is effective.

在求解配送中心选址问题时，常用的定量分析方法是重心法、CFLP法[1]、遗传算法[2]等。

A noveldynamic clustering algorithm based on the combination ofFCM algorithm with particle swarm optimization algorithm is proposed in this paper.

将粒子群优化算法与模糊C-均值聚类算法相结合，提出一种新颖的动态聚类算法。

There are two kinds of models about the higher-order correlation networks. In the two-state model, the higher-order Hebbian algorithm is usually used. For this Hebbian algorithm can have better associative memory only to orthogonal or near orthogonal prototype patterns, another learning rule, higher-order projection algorithm, is proposed in tensor representation in this dissertation.

关于高阶关联网络有两种模型，即两状态离散时间模型和模拟状态连续时间模型，在两状态离散时间高阶关联网络中最常用的是高阶Hebb规则，这种规则对于正交或近似正交的原型模式才具有比较好的联想记忆性能，因而本文用张量表示法给出了另外一种学习规则—高阶投影规则。

First, the time series model of the random road roughness running by construction machinery is built up based on the measured data of the random road roughness and by means of the basic theory and method of the time series analysis. A real-time parameter estimation method of fuzzy weighted recurrence least square algorithm is represented through analyzing the conventional recurrence least square algorithm. Then, the new recurrence algorithm and the on-line tuning method of the weighted matrix are given out, and computer simulation is performed.

首先，以实测的地面随机不平度数据为依据，应用时序分析的基本理论和方法，建立了工程机械行驶地面随机不平度的时间序列模型，并在分析传统参数估计方法递推最小二乘算法的基础上，提出了模糊加权递推最小二乘算法的参数实时估计方法，给出了在此基础上的递推算法及加权矩阵的实时在线整定方法，并对其进行了计算机仿真研究。

This paper suggests an effective endpoint detection algorithm based on pitch frequency. Self-adaptive threshold are applied to the algorithm. This paper also analyzes real-time performance of the algorithm referred.

本文提出一种引入自适应门限的基于基音频率的检测算法，并对文中提及的几种算法的实时性进行了实验与分析。

The principle of MUSIC algorithm and theoretical analysis of the spectral separate frequency and frequency detection threshold are included. MUSIC algorithm compared with FFT based algorithm for harmonic frequency estimation using matlab simulation platform .

给出了MUSIC算法的基本原理，对MUSIC算法的频谱分辨能力和频率检测门限进行了理论分析，在Matlab仿真平台下对MUSIC算法和FFT算法的频率估计性能进行了比较。

The new algorithm is based on the principle of fuzzy C-means clustering algorithm and the transiently chaotic neural network algorithm.

实例计算以及与其他算法比较表明，该算法是一种求解多车调度问题的可行且高效的方法。

of transitive closure based on equivalence relation, method of maximum fuzzy spanning tree based on fuzzy graph, and algorithm Fuzzy C-Means based on partition are more deeply investigated. Respectively, this thesis proposes an algorithm for document fuzzy clustering based on methed of transitive closure and an algorithm for document fuzzy clustering based on methed of maximum fuzzy spanning tree. Moreover, FCM is particularly studied from data standardization method, metrics method, and selection method of initial clustering prototype.

较深入地讨论了基于等价关系的传递闭包法、基于模糊图论的最大树法以及基于划分的模糊C-均值算法，分别提出了基于传递闭包法的文本模糊聚类方法ATCFC和基于最大树法的文本模糊聚类方法ATCMT；重点从改变规格化方式、改变度量方式、改变初始聚类原型选择方式三方面对FCM算法进行研究。

Many will continue to choose to live in duality and in conflict.

许多人将继续选择活在二元对立性和冲突中。

I find that students of the University of Physical Education all wear sportswear at first sight.

我发现：体育大学的学生乍一看，都是穿运动衣，大家都一样