Object oriented programming

Since the first days of computing it is clear that nobody is able to conceive large unstructured software systems. As a consequence, software systems are generally structured into subsystems or modules of a certain kind. The question, however, is how such a decomposition into subsystems should take place, i.e. what structuring criteria should lead to a specific modularization. In this paper a particular software design methodology called object oriented programming is discussed. Object oriented programming is especially interesting not only because of the very pleasing programming scheme but also because of its impact on the entire life cycle of a software project.     

Object oriented programming in Concurrent Prolog

It is shown that the basic operations of object-oriented programming languages — creating an, object, sending and receiving messages, modifying an object’s state, and forming class-superclass hierarchies — can be implemented naturally in Concurrent Prolog. In addition, a new object-oriented programming paradigm, called incomplete messages, is presented. This paradigm subsumes stream communication, and greatly simplifies the complexity of programs defining communication networks and protocols for managing shared resources. Several interesting programs are presented, including a multiple-window manager. All programs have been developed and tested using the Concurrent Prolog interpreter described in.¹⁾     

面向对象的安全评估方法

提出了一种新颖的安全评估方法。由于当前评估理论的匮乏,导致实际中相当多的安全评估不规范,随意,低效率。机构需要标准化的评估方法来指导相关工作。基于面向安全描述(OOSD)模型,给出了一种规范、开放和清晰的安全评估的架构。     

基于动态规划算法的矢量压缩方法研究与改进

将动态规划算法应用于矢量数据压缩是一种非常有效的优化压缩方法,可以得到压缩误差最小的压缩曲线,但是会导致局部失真明显。针对该缺点提出一种改进算法,通过在动态规划算法执行过程中设定阈值限制最大位移来防止局部失真,同时对A. KOLESNIKOV等提出的原动态规划算法公式的错误进行了纠正。实验表明,改进算法在保持原算法优势的同时,可以较好地解决压缩曲线局部失真问题。     

基于嵌入式操作系统的面向方面编程的研究

从传统的面向对象编程的局限性入手，提出面向方面编程，阐述了该编程思想的优越性并分析它和设计模式之间的关系。最后简单介绍了嵌入式操作系统，提出面向方面编程思想在其上的应用。     

Object - oriented databases for quality function deployment and Taguchi methods

In this paper, Object-Oriented Databases are proposed as being a new tool for Quality Function Deployment (QFD) and Taguchi Methods. Quality Function Deployment can help identify key product or process concerns with respect to customer requirements. Taguchi Methods, such as using Design of Experiments (DOE), can help identify what product or process relationships truly exist, their relative strengths and the nature of the relationship. In order to implement these two powerful quality control techniques for assuring that customer requirements are consistently met, a well organized information is required. Object-Oriented Databases are able to store, organize and manipulate both, the customer requirements and the product information for the performance of QFD and DOE.     

Object programming for CAD

The use of object-oriented programming to simplify the design and implementation of CAD systems is discussed. The three features common to all languages that support object-oriented programming data abstraction, inheritance, and runtime-function determination are examined. Examples are given to illustrate the advantages of object-oriented methods. How to build an embryonic CAD framework and when to use an object-oriented language are addressed. Object-oriented databases are defined     

基于AOP技术的通用线程监控平台GTMP*

提出并实现了基于AOP技术的通用线程监控平台。借助AOP的需求空间分离实现技术,使用该平台的原系统不必事先具有监控能力,该平台可以在不手动改变系统源代码的情况下通过工具自动植入系统内部,为系统注入监控功能,实现对运行线程信息的监视和对指定线程运行速度的变换,实现对整个系统运行行为的控制。     

An approximate programming method based on the simplex method for bilevel programming problem

Many real problems can be modeled to the problems with a hierarchical structure, and bilevel programming is a useful tool to solve the hierarchical optimization problems. So the bilevel programming is widely applied, and numerous methods have been proposed to solve this programming. In this paper, we propose an approximate programming algorithm to solve bilevel nonlinear programming problem. Finally, the example illustrates the feasibility of the proposed algorithm.     

Object oriented framework to develop automated warehousing systems based on step

This paper deals with developing automated warehousing systems, from the best physcial structure design to the control and managing code generation and installation rules. An integrated object oriented modeling methodology and a number of tools, have been developed in order to automate the design process as much as possible, and to take advantage of the common features of this kind of installation, and also allowing the needed customization. Finally, the design process of a real warehouse project is presented. This system is now working at the ACL company in Valladolid (Spain), which feeds the Palencia (Spain) RENAULT car-assembly plant with car seat covers in a JIT environment.     

基于AHP的模糊线性规划求解方法

对于基于AHP的多准则分析过程,存在不一致区间判断的复杂评估问题.通过有下限和上限的区间数表示元素之间的比较比率,构造模糊约束集合矩阵,引入模糊集的隶属度函数表示对各种优先权矢量的满意程度,利用线性规划求解具有最大满意度的优先权矢量,得出候选者的总体优先顺序,并举例说明了应用该方法的计算过程.     

Object tracking for mobile robot based on intelligent method

This paper proposed the real-time tracking algorithm in the active camera system, which is based on the intelligent method. To separate the object from background, the similarity of the color is analyzed through the fuzzy inference engine. And after segmentation, the local difference method between the continuous images is used to track the moving object. The experiment is performed using the developed embedded camera system with an ARM processor. This work was presented in part at the 13th International Symposium on Artificial Life and Robotics, Oita, Japan, January 31–February 2, 2008     

基于AOP的Web服务组合容错模型

为了解决现有Web服务组合容错方案中功能性代码与容错处理代码缠绕问题,提出了基于AOP的Web服务组合容错模型.对Web服务组合执行过程的各阶段失效原因进行了分析和归类,给出了相应的容错处理策略;基于AOP横切关注点分离的思想,构建了Web服务组合容错模型,保障执行过程中业务功能和服务质量的同时,实现了容错关注点与功能关注点的分离.通过实例分析,验证了该模型的可行性和有效性.     

基于Voronoi图的群体队形控制方法

影视作品中采用群体队形控制技术来制作大量角色处于某种队形运动的场景，但许多群体队形技术往往侧重于对自由移动的个体角色进行控制，而忽视了对队形运动的整体控制，导致场景画面缺乏美感性、整体性和条理性。针对这些问题，提出了基于Voronoi图的群体队形控制方法。首先，将群体队形进行Voronoi图空间划分，建立一个包含所有智能体的队形网格；然后，提出一种新的群体队形形变算法，采用人工势能场和相对速度障碍法进行合理避障，再结合弹簧系统使群体队形在形变过程中尽可能保持整体稳定；最后，采用Lloyd算法快速恢复到目标队形。实验结果表明，该方法可以很好地模拟群体队形变换运动，适用各种复杂场景，具有美感、整体、条理的队形变换效果。     

一种基于Voronoi图的高效异常检测方法

提出了一种新的基于Voronoi图的异常检测方法。采用Voronoi图来确定对象间的邻近关系,定义了一种新的异常因子,算法的时间复杂性为O（nlogn）。实验结果表明,同现有的算法相比具有较高的检测效率和准确性。     

Object oriented programming applied to a finite element technique for the limit analysis of axisymmetrical pressure vessels

This paper concerns with the aspects of the Object Oriented Programming used to develop a Finite Element technique for limit analysis of axisymmetrical pressure vessels. The concepts of inheritance, polymorphism, encapsulation and modularity are extensively explored. The analysis processor is part of a global computation system and it is integrated with two graphical modules defined as modeler (preprocessing) and post-processor, both of them associated to a new CAD technology. The problem used to illustrated the limit analysis technique implemented is a standard ASME torispherical vessel subjected to internal pressure. The obtained results are compared with other numerical and analytical solutions.     

基于Voronoi图的植物叶脉建模方法

提出了一种生成树叶叶脉模型的算法.叶片轮廓用B样条曲线绘制,分形LS文法用来实现对第一、二级叶脉的模拟,并使用Voronoi图对叶面进行网状分割生成第三级细脉.在生成Voronoi图的过程中,采用基于Poisson-disk模型的Dart-throwing随机采样算法得到均匀分布的Voronoi点集.仿真结果验证了该算法的可行性.     

Object oriented framework for real-time image processing on GPU

General purpose computation on graphics processing unit (GPGPU) provides a significant gain in terms of the processing time compared with CPU. Images are particularly good subjects for massive parallel implementations on GPU. Thus, the processing time can be improved for computer vision and image/video processing algorithms. However, GPGPU has a fairly complex integration process in a framework and they evolve very rapidly. In this paper, we present a framework that provides all the desired primitives related to GPGPU-based image processing algorithms, which makes it easy and straightforward for the user to exploit. The proposed framework is object-oriented, and it utilizes design patterns. The user can benefit from all the advantages of object-oriented programming, such as code reusability/extensibility, flexibility, information hiding, and complexity hiding. This makes it possible to rapidly integrate new technologies and functionality as they appear.     

基于桑基图的时间序列文本可视化方法

桑基图在工业、能源以及金融货币的流程图中起到很重要的作用,它能够用非常活泼生动的方式展现能源利用以及能源流向信息。本文创新性的提出了一种用桑基图来展现时间序列文本数据的可视化方法。这种方法不仅仅能够突破桑基图在不同领域中的应用场景,还能够理想的对时间序列的数据进行展现,使得展现的数据美丽的且带有趣味性。使用具体的金融文本数据集对提出方法进行了验证,证明了该方法能够对时间序列文本数据进行清晰的表达,对隐含的知识能够有效的挖掘,具有很好的实用性。     

一种基于Ghosh斜率图法的改进的临界多边形生成算法*

本文在Ghosh的斜率图法( Slope diagram )的基础之上, 对凹-凹这种情况进行了重点研究分析,提出了一种更加高效的求取NFP的改进算法, 新的改进算法改进了边的遍历方式, 简化了NFPList的构成, 提高了求取外层NFP轮廓的效率. 仿真实例也进一步验证了所提方法的正确性和有效性.