查询词典 iterative

In bi-iterative quadratic programming, the design problem of interleaved DFT modulated filter bank is formulized to a noncovex optimization.

在双迭代二次规划算法中，交替DFT调制滤波器组的设计问题被描述为一个非凸优化问题。

An iterative server iterates through the following steps.

迭代的服务通过以下方式跌送。

Contrast source inversion algorithm recasts the inversion problem as a minimization of a cost functional, thus an iterative sequence is formed to reconstruct the contrast sources and contrasts.

对比源反演算法将反演问题转化为求解成本泛函的极小值问题，从而形成重构对比源和对比度的迭代序列。

Then a BGPEOpt(BGP Egress Optimization Algorithm) algorithm is proposed to reduce the execution time of the typical algorithm by leveraging the .characteristics of cut link in the topology graph to reduce the frequency of recomputing traffic demand. Further more, mediate results are used in the iterative process to reduce the time of computing the IGP shortest distances from a source node to other nodes. Experimental results indicate that the running time of BGPEOpt reduced 7%~30% with the similar link utilization comparing to that of typical algorithms.

在此基础上，提出了静态阶段的BGP出口选择优化算法BGPEOpt(BGP Egress Optimization Algorithm)，BGPEOpt算法利用网络拓扑结构中割边的特殊性，减少流量矩阵重新计算的频率；同时利用算法在迭代过程中的中间结果，减少重新计算从一个源节点到其它节点最短路径的时间，从而提高了算法的时间性能。

We study an iterative algorithm, which reconstructs a signal from the maxima representation of its dyadic wavelet transform.

研究了由信号二进小波变换模极大值重构信号的迭代算法。

A new regularized iterative image restoration approach in the frequency domain has been introduced.

本文提出了一种在频率域进行图像正则迭代恢复的新方法，着重讨论了离焦图像的恢复问题。

Landweber method is a simple and flexible iterative algorithm and has very good regularizing features.

Landweber方法是一种简单、灵活的迭代算法，具有很好的正则化特性，它的投影变体能够提供非负的图像重建。

3D-CTM (Coupled Thermo-Mechanical Forming Simulation) software for precision forging process of aero-engine blade was developed. The key technologies of 3D coupled rigid-viscoplastic thermo-mechanical FEM simulation of blade forging process were studied systematically. By using the remeshing method of contracting from the boundary to the inner, new mesh system from old distorted mesh system can be obtained. A method of modifying the position of nodes touching on the die according to its original normal was proposed to avoid "dead lock" problem due to uncontinuity of normal of scatted die meshes. The pseudo-static iterative algorithm was used to simplify the coupled thermo-mechanical computation. In particular, formulations to determine relaxation factor β was established for rigid viscoplastic FEM adopting penalty function method, and an improved cubic factor rapid algorithm derived from these formulations was proposed by combining with the advantage of advance and retreat search method.

采用基于边界构形的内缩法，实现了三维畸变网格的重新划分；提出了初矢修正法对触模节点的位置进行修正，解决了由于离散的模具网格的法矢不连续造成的&死锁&问题；采用准静态迭代法简化了速度场和温度场耦合计算过程；特别是针对减速因子β的选取，建立了适用于三维复杂成形过程刚粘塑性罚函数法有限元三次因子法的计算公式，并结合进退搜索法提出了改进的三次因子快速算法，提高了模拟计算效率和稳定性，在此基础之上，开发了面向叶片精锻过程的三维刚粘塑性热力耦合有限元模拟分析系统(3D-CTM)，系统的可靠性得到了圆柱体镦粗的验证。

Based on the new cumulant matrix, a simple iterative BSS algorithm is proposed, which requires neither centering nor sphering of the data and separates the mixed signals directly.

本文定义了一种新的累积量矩阵，对这种累积量矩阵的计算实际上只需要对二阶累积量进行估计，因而相对于常规的累积量矩阵的估计，该方法计算简单，并且有可能达到较小的估计偏差。

There are multiple, iterative development sprints, or cycles, that are used to evolve the system.

为了提升系统性能，会有多次的、迭代的开发冲刺或循环。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。