查询词典 fast algorithm

In processing asunder distributed data, a fast PCA algorithm was proposed.

提出了在数据分布比较分散情况下的一种快速的PCA数值计算方法。

This act thrusts the algorithm into the big-league world of very fast, mind-boggling big bucks.

松开了理论的缰绳、自动运行着，这个获得了血肉身体的算法现在只能听到它的创造者们的喃喃低语："交易、小子[2]、交易！"

Based on a fast adaptive bisection approach, we present a real-time CCD algorithm for the Blast-fragment Warhead Virtual Experiments.

本文在一种比较快速的基于对分法的连续碰撞检测算法的基础上，根据杀爆战斗部虚拟实验的场景和需求特性分析，对其进行了改进。

Based on this consideration, we propose a fast control algorithm for the switches in Cantor network.

为此我们首次提出并建立了多级Cantor网络的快速控制方案。

The algorithm GS to solve the problem of inverse dynamics based on the optimal theory is proposed, by using the numerical methods of Gill and shooting target, the optimal joint driven torques are obtained With the smooth joint trajectory motion, a fast and stable inverse dynamics method is proposed, it provides a new effective way to control the flexible manipulator The trajectory planning in the joint space and Cartesian coordinates is especially discussed In terms of kinematics of space flexible link manipulators, a sequential integration method for inverse dynamic analysis of flexible manipulators is developed The concrete results of simulations tested and verified the validity of proposed methods, and some valuable conclusions are achieved.

提出了求解基于最优理论的柔性臂逆动力学问题的GS法(Gill—Shooting method)，得到了柔性臂关节的最优驱动力矩；提出了基于光滑关节运动轨迹的柔性臂逆动力学的快速稳定方法，为柔性臂控制提供了一条新的途径；探讨了关节空间和直角坐标空间柔性臂的轨迹规划问题；研究并完善了结合柔性臂运动学的顺序积分的逆动力学方法。通过具体实例的仿真研究，验证了所提出的柔性臂逆动力学方法的有效性，得出了一些很有价值的结论。

At the same time, combining with the actual condition of delivery pipeline of our country and some prevalent leak detection and location methods, this paper raised a method, which is based on wavelet analysis and negative- pressure-wave to detect and locate the leakage. Jobs in the paper are as follows:As affected by gas density, pressure, specific heat and pipe material, the velocity of negative-pressure-wave improved depending on the energy conservation. At one time, taking the affection of velocity of gas flow, the location formula was modified in some degree.When locating the leaks with location formula, the iterative approach algorithm was adopted as a new method to increase the location accuracy level of system.Multi-scale decomposition and reconstruction of wavelet transform is utilized to filter the noise of negative-pressure-wave, which was brought by leakage. With the capacity to detect the signal singularity fast and accurately, wavelet transform was used to catch the break point of pressure signal. The work improved the accuracy of At in location formula, accordingly improved the location accuracy.Wavelet is a suitable tool for signal analysis. The distinct character is that the mother-wavelet is of optional. That means choosing different mother-wavelet will get different analysis result. So we studied how to choose mother-wavelet and its scale for signal singularity detection. The method is to choose a wavelet by regularities of the wavelet and the signal.Finally, a plan, which bases on SCADA system for inspection and detection of natural gas leakage, is proposed in the article.

其中，主要进行了以下几方面的工作：针对泄漏产生的负压波在管道中的传播速度受媒介的密度、压力、比热及材质等因素的影响，而非声波在空气中传播的速度，本文利用能量守恒原理，对其进行了修正；考虑到管内气体流速对压力波速的影响，对原始的负压波定位公式进行了一定程度的改进，并在利用定位公式进行泄漏点定位时采用逐步迭代逼近算法，提高了系统的定位精度；利用小波变换的多分辨率分解和重构技术，对采集到的管道发生泄漏时产生的负压波信号进行了降噪处理；并利用小波变换技术对信号奇异点的快速、准确的识别能力，对经上述消噪后的负压波信号进行了奇异点捕捉，精确捕捉的结果提高了定位公式中上下游站点采集到的负压波奇异点的时间差△t的精度，从而进一步提高了定位的精度；考虑到小波变换是一种基波可变的信号分析工具，也就是说，不同的小波基波对信号分析的结果将有很大差别，这势必影响最终的处理结果，因此，我们又对比分析了本课题中小波基及尺度的选择问题，依据规则性系数相似性原理对母小波的选择进行了探索性研究；最后，还提出了基于SCADA的泄漏检测与定位系统的软件开发构想及系统的嵌入方案。

Compared with K-means clustering, a novel clustering algorithm called affinity propagation has been developed by Frey and Dueck, which can produce a good set of cluster exemplars with fast speed.

此外，一些新的聚类方法也陆续被提出，最近由Frey 和 Dueck发表的近邻传播算法就是一例，该方法的优点是能快速的产生一组聚类中心。

In addition, the hardware architecture of a fast codeword search algorithm based on Hadamard transform has also been proposed.

此外，本文还提出了基于哈德玛变换快速码字搜索算法的硬件结构。

The paper also presents a fast correlation-side match algorithm, which is applied to codeword searching for image vector quantization and has a good result.

文中还提出了快速相关—边缘匹配算法，将其应用于图像矢量量化中的码字搜索过程，取得了良好的效果。

On one hand, we analyse the virtues and disadvantages of existing algorithms based on inequality criterion and transform domain, then a fast codeword search algorithm based on ordered Hadamard transform is presented.

一方面，分析现有的基于不等式判据和基于变换域的各种算法的优缺点，提出了一种新的基于排序哈德玛变换的快速码字搜索算法。

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。