查询词典 fast algorithm

Thirdly, in order to improve the learning efficiency and stability of feedforward neural network, a fast learning algorithm for neural networks based on CGM-OC approach is presented. Compared with other learning methods such as BP method, Broyden Flecher Goldfarl Shanno method and Powell method in which the derivative is replaced by the difference quotient etc, simulation results show that the proposed method is an efficient and fast one.

第三，为了提高前馈神经网络权值的学习效率及稳定性，提出一种基于正交校正共轭梯度优化方法的神经网络学习算法，通过与其它学习算法（如：BP算法、变尺度法、用差商近似代替导数的Powell法等）的比较，经仿真试验表明，本算法是一种高效、快速的学习算法。

The high productivity and efficiency is supported by both fast matching algorithm and scalable fault-tolerant computer cluster software, which allows to perform fast parallel fingerprint matching, processes high number of identification requests and handles databases with practically unlimited size.

高生产力和效率是都支持快速匹配算法和可扩展的容错计算机群集软件，它允许执行快速并行的指纹匹配，过程高的数目鉴定的要求和处理数据库与可能性实际上是无限的大小。

To enhance computation efficiency and coverage of streamlines of fast line integral convolution, an improved algorithm of fast LIC with Sobol sequence was presented.

为提高快速线积分卷积法的计算效率和流线的覆盖率，提出了一种改进的基于Sobol序列的快速线积分卷积法。

Based on the analysis of the Doppler effect of the mobile channel, the performance of two MIMO-OFDM systems (STTC-OFDM and SFBC-OFDM) in the fast-moving environment is studied. Then, the algorithm for channel estimation based on the training sequence is extended into the fast-moving environment by introducing the space-frequency coding, the method of the equal-interval pectinate pilot-inserting, and the complete Maximum-Likelihood space-frequency decoding.

针对快速移动环境中存在的多普勒效应，研究了两种多输入多输出正交频分复用系统在快衰落信道中的误码性能，采用空频编码梳状等间隔导频插入方式，以及完全最大似然空频分组码解码算法，使用导频与接收信号进行信道参数估计，将一般多输入多输出正交频分复用系统中的基于训练序列的最小均方误差信道估计算法推广到了快衰落信道环境中。

Fast Fourier Transform algorithm which is very important in digital signal processing is studied throughly here, and so is fast co...

本文对数字信号处理技术中极为重要的快速付里叶变换算法进行了深入的研究，对于循环快速卷积算法进行了讨论。

For fast orthogonal transformation algorithm, the paper carries out detailed research and analysis. In terms of many transform coding, it put forward these four rapid transformation algorithms which are Discrete Cosine Transform, Discrete Fourier Transform, Harr Transform, Walsh-Handmaid Transform, and analysis of these fast algorithms in image compression applications.

对于正交变换的快速算法本文进行了详细的研究与分析，并根据各种变换编码，提出了离散余弦变换、离散傅立叶变换、Harr变换、Walsh-Hadamard变换这四种变换的快速算法，并分析了这些快速算法在图象压缩中的应用。

The fast multipole method and the multilevel fast multipole algorithm are new efficient methods for analysis problems of electrically large objects.

快速多极子方法和多层快速多极算法是研究电大尺寸目标问题的新型的快速高效数值算法。

Order method is introduced, and the fast multipole algorithm and the precorrected fast fourier transform method are described in detail, some further developments of these methods are given at last.

介绍了面元法的快速算法及B样条高阶方法的发展概况，对快速多极算法及预修正快速傅里叶变换方法做了详细的介绍，指出了这些方法今后的发展方向。

The fast motion estimation algorithms are classified by the approaches of how to accelerate the search process, and the in-depth study of the fast block matching motion estimation algorithm based on search pattern is performed in this paper.

本文提出了依据提升搜索速度的途径对运动估计快速算法进行分类的方法，并对基于模板块匹配的运动估计快速算法进行深入的研究。

Monadlist belt reframes improve small commutation algorithm, undertake decomposing to signal with when reframing, use fast Fourier to alternate and fast Fourier inversion are changed is right each child take signal to undertake handling.

单子带重构改进小波变换算法，对信号进行分解和重构时，利用快速傅里叶变换和快速傅里叶逆变换对各子带信号进行处理。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。