查询词典 algorithms

Firstly, illustrate the fundamentals (differential-integral optimizing theory) of the category of algorithms briefly in the sight of differential and integral calculus. Then two examples of the category of algorithms are listed.

首先从函数逼近的角度论述了数值积分与全局最优化的关系，随后从微积分的基本原理和定积分的定义出发对该类算法的几何意义和数学基础作了简要论述；在此基础上给出了该类算法的几个具体实现。

Programming, Discrete Mathematics, Data Structures and Algorithms, Introduction to the Design and Analysis of Algorithms, Operating Systems, Compiler Principles and Practice, Computer Networks, Computer System Architecture, Embedded Systems and Applications, Database Systems and Applications, Formal Language and Automata, Software Engineering, Artificial Intelligence, Introduction to Computer Graphics, Software System Design, Software Project Management, etc.

主干课程：算法分析与设计、面向对象技术与应用、软件项目管理、软件体系结构、软件过程改进、计算机网络技术、网络与信息安全技术、软件测试技术、信息系统分析与设计、软件度量技术、数据库管理技术、软件平台与中间件技术、数据仓库与数据挖掘、软件需求工程、计算机图形学等。研究方向：软件工程与管理、软件理论与系统、信息系统与工程、计算机图形学与辅助设计。

Three solution algorithms for classical transportation continuous/discrete/ mixed network design problems are designed based on particle swarm optimization approach, in which the continuous NDP is studied in detail, discrete and mixed NDP are only described the frameworks of the solution algorithms.2. Generally, road capacity constraints must be added to the lower level problem of classical discrete NDPs bilevel programming model in order to avoid traffic assignment on candidate roads.

本论文研究工作主要有如下几个方面：(1)基于粒子群优化思想设计了求解传统的城市道路交通网络设计问题的算法，其中详细研究了连续网络设计问题，并用两个网络例子进行了数值实验；并给出了离散网络设计问题和混合网络设计问题的求解算法思路和主要步骤。

The beamforming is an important measure of the orientation estimation in theunderwater sound positioning. The Generalized Correlation Beamformer isstudied and the algorithms of FIM and WFIM(WeightedFourier Integral Method) are given. In most circumstances, the performance of these two algorithms is better than Delay-Sum Beamformer. The MVDR(MinimumVariance Distortionless Response) adaptive beamformers are investigated in element andbeam domain. The research results show that the beam-domain MVDR algorithm notonly increases the resolution, but also saves computer when using it to aim orientationestimation.

4水下声定位中波束形成技术是方位估计的重要手段，重点研究了广义相关波束形成算法傅氏积分方法(FIM和加权傅氏积分方法，大多情况下FIM、WFIM算法的性能优于时延—求和波束形成；研究了阵元域和波束域MVDR自适应波束形成，结果表明，利用波束域MVDR进行目标方位估计，既可以获得高精度的方位估计，又可以大大减少计算量。

Simulation results verify the theoretical analysis of rapid DoA estimation algorithms and demonstrate the effectiveness of the algorithms.

仿真结果证明了对DoA估计的快速算法理论分析的正确性和算法的有效性。

The experiment results of a real mobile robot indicate that the computational expensiveness of designed algorithms is less than other evolutionary algorithms of single-objection for simultaneous localization and mapping and accuracy of obtained maps are higher .

通过移动机器人物理实验证实了所构造算法的计算代价比其他基于进化算法的单目标优化方法少，获取的地图准确性更高。

Another part of the thesis is the research work with relation to both DIS and CGF, mainly consisting: After the common DR methodology, DR algorithms and their characteristics are introduced, a new valid DR algorithm based on the idea of simplified dynamic model equation is presented and evaluation result is given. Then the technology of translation delay compensation and smoothing algorithms are recited. The real-time graphic and image technique and the eyepoint position selecting method are used in the visualization implement of CGF system.

第二类研究内容是CGF与DIS共同存在的关键技术研究，主要包括：在介绍DIS系统采用DR技术的重要性以及常规DR算法基础上，提出了一种基于简化动态模型方程思想的DR算法，并对算法进行了评价；介绍了CGF系统的传输延迟补偿与平滑技术；将实时图形与图象技术以及观察点选取方法应用于CGF系统的可视化。

It is the first important step in video analysis and will directly affects the effectiveness of indexing Shot boundary detection is one of our major research interests and we will tackle the following existing problems the ambiguity between gradual change and camera motion, the discontinuity during gradual change, false detection caused by illumination variation and flashlight, automatic threshold selection Firstly, we discuss shot boundary detection in non-compressed domain In chapter 2, we compare some of the commonly used detection methods which are based on frame difference and point out that single feature will not generate good results As a conclusion, we use fuzzy logic to combine multiple features Presently, most frame difference based shot boundary detection algorithms rely on threshold and hence the selection of such thresholds will greatly affect the performance of boundary detection We propose a membership function to define frame difference and calculate the membership with self adaptation according to the statistic distribution of frame differences to satisfy different type of video clips Experiments show that the proposed fuzzy shot boundary detection algorithm can be used with different video types and has a high detection precision and recall In chapter 3, we discuss model-based shot boundary detection algorithms regarding chromatic and spatial editing effects such as fade-in, fade-out, dissolve and wipe Various parameters are proposed to better describe the characteristics of each editing type.

镜头边界的检测是把视频自动地分割为一个个镜头，作为基本的索引单元，因此它是视频分析重要的第一步，直接影响到视频检索的成败。镜头边界的检测是本文研究的重点之一。目前镜头边界检测算法主要存在以下问题：渐变与镜头运动难以区别；渐变过程中的不连续与停顿、光照条件的变化及闪光灯等特殊情况会引起误检测；自动选择阈值比较困难等。本文首先针对非压缩域视频进行了镜头边界检测的研究。在第二章中我们采用了比较流行的基于帧间差的方法。在比较各种帧间差计算方法的基础上，指出使用单一的特征难以取得很好的检测效果，提出用模糊逻辑综合使用各种特征。目前大多数基于帧间差的镜头边界检测算法都采用阈值法进行镜头转换的判别。阈值选择的误差对检测性能有较大的影响，本文提出用隶属度函数定义帧间差较大、中等较大和较小等概念，并根据帧间差的统计分布自适应地确定隶属度，以适应不同类型的视频片断。实验结果表明这种基于糊逻辑的镜头边界检测算法可以适应不同的视频，并具有较高的检测精度和检出率。在第三章中采用基于模型的方法进行镜头渐变的检测，研究了淡入／淡出、慢转换和扫换的模型。

At last, existed excellent algorithms and our optimized algorithms are integrated and implemented and the frame of spleen feebleness clinic data mining is constructed.

最后，将已有优秀算法和本文提出的一些优化算法加以整合和应用，建立脾虚症临床症状数据挖掘的框架。

Another belongs to hybrid genetic algorithm,which is a hybrid of First Fit Decreasing approximation algorithms and genetic algorithms.

另一种是混合遗传算法，它综合运用解装箱问题的FFD（FirstFitDe－creasing）近似算法和简单遗传算法。

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。