查询词典 algorithm

In this paper we studied filter backprojection algorithm and algebra iteractive algorithm of industrial CT image reconstruction.

本文研究了CT成像的常用算法：滤波反投影算法和代数迭代算法。

This method combined the traceroute result with the topology information obtained by tomography to construct a final topology using minimum similarity cluster algorithm and merging and constructing anonymous routers algorithm.

该方法可通过提出的最小相似度聚类算法和匿名节点构造归并算法，将网络层析成像获得的拓扑信息与traceroute探测结果融合，构成最终的拓扑结构。

This method combined the traceroute result with the topology information obtained by tomography to construct a final topology using minimum similarity cluster algorithm and merging and constructing anonymous routers algorithm.the simulation on ns2 shows that this method not only be able to infer the network topology which contains uncooperative routers, but also enormously reduce the number of probes.

该方法可通过提出的最小相似度聚类算法和匿名节点构造归并算法，将网络层析成像获得的拓扑信息与traceroute探测结果融合，构成最终的拓扑结构。ns2的仿真表明，该方法不仅可识别包含不协作节点的网络拓扑，且所使用的探测包的数量也大大减少。

College of Guandong Business, Guanzhou 510320, China）Abstract: Since large-scale vertical quench furnace is voluminous, whose working condition is a typically complex process with distributed parameter, nonlinear, multi-inputs/multi-outputs, close coupled variables, etc, dynamically decoupling control algorithm of temperature distributed parameter system in the furnace was presented, by which the whole system was decoupled to several subsystems and the implementation of controller was simplified. With finite difference approximation, the space and time step size was solved to ensure the convergency of finite difference approximation. After decoupling, the subsystems were controlled with self-learning PID control algorithm. The results show that the temperature control precision and homogeneity are improved; the overshoot and process in temperature rising period are reduced simultaneity.

摘 要：针对大型立式淬火炉体积庞大，工况复杂，炉内温度分布呈本征非均匀性，具有多输入/多输出、非线性、强耦合等特性，难以实现炉内温度高精度高均匀性控制目标等问题，提出一种温度分布参数系统动态解耦控制算法，其原理是：采用有限维逼近方法将对象解耦为多个独立的子系统，简化控制器的实现过程；通过分析有限维逼近方法的收敛性，获得保证收敛性的空间和时间步长应满足的条件；解耦后的子系统采用自学习PID控制算法，实现炉内温度高精度和高均匀性控制以及升温过程的快速性和小超调。

Under the assumption that the feasible region of the problem is n dimension, if the algorithm is terminated after finite step, the point obtained must be a global optimal solution of the problem, else each accumulation point of sequence {vk} which the algorithm produces must be a global optimization solution of the problem.

在问题的可行域是n维的条件下，如果这个算法有限步后终止，得到的点必是问题的整体最优解；否则，该算法产生的点的序列{vk}的每一个聚点也必是问题的整体最优解。

In the search step of thepatter search algorithm,a finite set of points is obtained by a process similar to genetic algorithm.

在模矢搜索方法的搜索步，用一个类似于遗传算法的方法产生一个有限点集。

We give a polynomial algorithm for the first problem and an approximation algorithm for the second one.

对于一类具有离散资源约束的排序问题当机器数目固定时本文给出了一个多项式时间算法，对于一类加工时间依赖资源的排序问题给出了近似算法。

Filter-based matching algorithm uses a bank of Gabor filters to capture both local and global details in a fingerprint as a compact fixed length Feature Vector. Invariant-moment matching algorithm is used to overcome the deformation in fingerprint.

用一组Gabor滤波器获取指纹图像的局部信息和全局信息，并表示成简洁的指纹滤波特征向量，用于滤波特征匹配；针对指纹图像中存在的三种形变，采用图像的不变矩算法进行不变矩的匹配。

The computation results show that compared with the traditional FLIC, the computation efficiency of the improved algorithm increases by approximately 10%, and it can generate sparse texture and dense texture simultaneously. Also the property of result image was improved using double LIC algorithm.

计算结果表明，与一般的快速线积分卷积法相比，改进后的算法计算效率提高了约10%，同时可以产生稀疏纹理和密纹理，并且采用二次LIC法对图像进行后处理提高了可视化效果。

In this paper, I have made some research and innovative achievement in the following aspects:(1) In order to overcome the weakness of premature convergence and the disadvantage of local seardhing ability appearing in GA, an improved genetic algorithm which combining with Heuristic algorithm is proposed and applied in the flow shop scheduling problem.

在本论文课题的研究及应用过程中，作者做了以下主要研究工作和成果：(1)鉴于遗传算法容易出现过早收敛的问题以及局部搜索能力不强的问题，提出一种结合启发式算法改进的遗传算法，并将其运用于流水车间作业调度问题的求解。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。