速度慢的

The key to feature extraction is to select the optimal feature combination from all the features. In this study, the optimal color feature combination,{/G,(R+4G+B)/6, H variance, S variance}, is selected using genetic neural network at first. Then the main texture features including the mean, variance, energy and entropy of the cooccurrence matrix, the secondary texture features including the maximum frequency number, absolute uniform, inertia and importance of the co-occurrence matrix are extracted.

在此基础上，提出适合多阈值和小目标图像分割的免疫遗传图像分割方法，该方法借鉴了生物免疫系统自调节、抗原识别和记忆功能，并结合了遗传算法对图像进行自适应区域的阈值分割，改善了遗传算法优化复杂问题时存在收敛速度慢和易陷于局部最优的不足，克服了传统阈值分割方法对目标大小的限制，是一种新型的有效的图像分割方法。

Given a finite training sample set, according to the proposal of establishing a Local Most Entropy probability density function to estimate the number of cluster a method for estimating 〓 is proposed, where a complicated method based on Maximum Likelihood Cross-Validation is replaced by Chebyshev inequality.

为改善BP算法的收敛速度慢、易陷入局部最小的问题，提出了带一类非线性特性动量项的变步长BP算法，构造了一个能自适应升降温的动量项非线性强度函数，在编程中又采用了有条件引入非线性特性动量项的措施，大大提高了搜索过程跳出局部极小、快速稳定收敛的能力。

The theoretic formulas for cross correlation analysis were derived. 2. According to the frozen model, a transit model and expression formula of flow noise were got. Parameter estimation algorithm was applied in calculating of cross correlation function.

根据凝固模型，建立了流动噪声信号的传递模型，推导出凝固模型时的传递函数的表达式；对两种流动模型情况下，流动噪声的传递进行理论和仿真研究，仿真表明，尽管参数估计法可以消除传感器的涂污现象，但计算量大，速度慢，不能满足实时测量的要求。

It has become one of the important tasks in the study on modern electric system. At first, this text has briefly introduced meanings, the current development and the main methods which the electric load forecasting are used. This paper aimed at the floatability which the load data had and the nature that neural networks model is easy to fall into part infinitesimal value and low iterative speed, this paper proposed a method based on neural networks and SVM. SVM can dispel the less summation and the larger single point errors of neural networks, and the neural networks could dispel the simplification of the model of the vector support machine.

本文首先介绍了电力系统负荷预测的意义、发展现状和主要方法；针对负荷数据具有浮动的特点以及神经网络模型算法容易陷入局部极小和迭代速度较慢的缺点，提出了一种基于神经网络和支持向量机的混合负荷预测方法，此方法能通过支持向量机消除神经网络的总和较小但单点误差较大的不利现象，而神经网络消除了支持向量机的模型简单问题。

Based on the discussion of contradict model's exist condition and learning method, a Internal Model Control strategy that may used in on-line self-adapting adjust and self-collected is presented. The strategy settles the problem in identification and control of the no self-balance object by using feedback compensatory sangfroid implement. And it also settled the unable on-line problem due to the slow training speed through separating control process and on-line study process.

在讨论了逆模型的存在条件和学习方法的基础上，本文提出了一种可以在线自适应调整的、镇定的内模控制方法，通过加入反馈补偿镇定器，解决了无自平衡对象的辨识问题与控制问题，同时通过将控制过程和在线学习过程分开的方法解决了由于训练速度慢而造成的不能在线问题。

Based on the discussion of contradict model's exist condition and learning method, a Internal Model Control strategy that may used in on-line self-adapting adjust and self-collected is presented.

在讨论了逆模型的存在条件和学习方法的基础上，本文提出了一种可以在线自适应调整的、镇定的内模控制方法，通过加入反馈补偿镇定器，解决了无自平衡对象的辨识问题与控制问题，同时通过将控制过程和在线学习过程分开的方法解决了由于训练速度慢而造成的不能在线问题。

The main work and result in this paper are described as the following: Aiming at the defects like slow-speed and low-efficiency of the traditionalhierarchical clustering method in pattern-recognition, this paper provides an improvedclustering method by the quartation in the particular image-processing field.

本文的主要工作和成果如下：针对模式识别中传统的谱系聚类法聚类速度慢、效率过于低下的缺点，提出一种在特定图像领域中利用四叉树分割进行改进的聚类方法。

By stretching the song to about 50 times slower than normal, one can enter a rich world of odd tones, microscopic vibrations and little glissandi not belonging to the actual melody, but being a natural part of the human voice and the Chinese tradition of singing.

随着歌曲旋律被放慢到比正常速度慢五十倍，这时就进入了一个丰富的单音世界，显微镜摆动着，小的滑音并不属于真实的旋律，却是人声和中国民族唱法组成的自然的声部。

In the feature extraction stage, methods of extracting geometrical and statistics are introduced in this paper, which include geometrical extracting method, singular value decomposition, linear discriminated analysis, discrete cosines transform, feature extraction based on wavelet analysis.

重点介绍了本论文所使用的主分量分析和定点独立分量分析的方法，定点独立分量分析是一种基于高阶统计信息的特征提取方法，收敛速度快克服了一般ICA收敛慢的缺点。

The Alfama Lisbon area is home to many traditional grocers and workshops and daily life carries on at a slower pace than most are used to in the rest of the city.

里斯本地区的阿法玛是许多传统的杂货店和讲习班，并进行日常生活上以较慢的速度比大多数被用在城市的其余部分。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。