Fem has proven to be a versatile method for the simulation of continuous physical systems in many areas of science and engineering . but a disadvantage arises due to the very high computation times regarding conventional serial computers 有限元被证明为在许多科学和工程领域中连续物理系统模拟的一种普遍方法,但缺点是传统的串行计算机需要花费太多的计算时间。
This method need fewer computation time than connecting scheme ( cs ) based on boundary integral equation and can be apply more easily and more widely . all the numerical results listed in this dissertation have demonstrated the validity and high efficiency of our research works 该方法比以前用积分方程级联法求解内部口径导纳矩阵需要更少的计算时间,并且能应用于具有更复杂腔体内部结构的含腔目标。
Since the novel algorithm makes good use of both the efficiency of the set covering and accuracy of the tabu search , in real instance , it achieves better performance than tabu search algorithm with only 8 . 8 % of its computation time 由于综合利用了集合覆盖算法的快速性和禁忌搜索算法的精确性,实际场景仿真结果显示,新算法仅用禁忌搜索算法8 . 8 %的计算时间,就搜索到比禁忌搜索算法优化性能更好的布局配置。
Considering the recognition performance and the computation time , this paper proposed a method using to select the different number of the eigenvector in allusion to different training datasets . in the end , the orl and yale dataset are used for the experiments 本文从识别准确率和复杂度两个方面考虑,提出针对不同的样本集,选择不同的特征向量来组成特征空间,最后在orl和yale人脸数据库上进行实验。
The interface for visual basic and fortran is programmed . the data transfer is completed among programs . the dissertation establishes the reasonable program structure combined with advanced computer technology such as multi - thread in order to shorten computation time 再次,利用图形技术对软件计算数据进行可视化处理,以增强显示效果;建立visualbasic与access数据库的接口,实现计算结果的动态数据库存储。
While the theory of wheel / rail system dynamics is applied in the points ( switch ) dynamics , the system is more complicated and computation time is longer , therefore the parallel computing technology is an effective method to increase computation speed 特别是随着轮轨系统动力学在道岔动力学中的应用,处理的问题更加复杂,计算时间长的问题,已成为实际应用中的一大障碍。提高其计算速度的一个有效方法就是采用并行计算技术。
The results show that the apparent radar range corresponding to the real height agrees with the published results within 1 % , and the computation time of this method is in order of sub - milliseconds to determinate a pair of range and height using desk computer at present time 计算证实,真实高度相应的雷达视在距离在1以内和已有结果一致,每确定一组视在距离和真实高度所需的时间为亚毫秒量级,基本可满足当前应用的要求。
The fast nearest - neighbor search algorithm was proposed to accelerate the process of anomaly detection . it can reduce the unnecessary vector similarity measures , producing a large computation time saving and the high real - time performance of anomaly detection system 网络异常检测的可用性最为重要,为了提高算法分析的效率和系统的实用性,针对码书的结构,设计实现了一种基于向量约减的快速最近邻搜索算法来实现高效的网络异常检测。
The lifting scheme is the method to construct second generation wavelets . compared to the mallat algorithm , it has the advantages of less computation time , in - place operation and so on , so the jpeg2000 standard recommends the lifting scheme to compute the discrete wavelet transforms 提升算法是第二代小波变换的构造方法,和传统的mallat算法相比具有计算量小,原位运算等优点,因此jpeg2000标准也推荐采用提升算法来实现离散小波变换。
By calculating rcs of arbitrary shaped conducting objects and the input admittance of a wire antenna on the arbitrary shaped conducting platform , it is shown that the method of impedance matrix interpolation can greatly reduce the computation time compared with the traditional moment method 该方法仅对几个插值点频率直接进行计算,便可通过插值快速生成其他频率点上的阻抗矩阵,相比于对每一个新频率点重新直接计算阻抗矩阵,极大地减少了计算时间。