组件对象模型在Agent软件开发中的应用

COM具有可重用性、继承性等特点,文中结合Microsoft Agent技术探讨了Agent人性化编程技术以及组件对象模型在Agent类软件开发中的应用,可使计算机具有更好的人机交互性.主要利用VC++的MFC类库直接使用COM对象接口来编程,并给出计算实例,能够起到一定的参考作用.     

COM/DCOM与CORBA互操作的实现

COM／DCOM和CORBA的异构性决定了COM／DCOM对象和CORBA对象间不可能实现相互通讯。本文应用刚出现的SOAP技术，实现COM／DCOM和CORBA的互操作。     

构建COM+上的移动Agent分布式信息系统

提出一种将移动Agent融合到COM 中的新的分布式系统结构，以面向组件的分布式计算结构COM 为底层支持，引入移动Agent增加系统智能性和灵活性，深入阐述了两者对象的组合，如何达到优势互补、多Agent协作系统结构和运行过程以及COM 如何对Agent支持等关键技术问题，初步说明了系统构建的可行性。     

OPC技术介绍（一）

◆ 基于COM技术的OPC 微软公司为了提供商业应用程序和特定用途的软件包间的相互连接性，开发了组件对象模型（Component Object Model, COM）技术。COM是一种软件组件间相互数据交换的有效方法。COM技术具有以下特点： COM并不是一种计算机语言，它与运行的机器（只要互相连接），机器的操作系统（只要支持COM）以及软件开发的语言无关，而是在任意的两个软件组件之间都可以相互通信的二进制和网络的标准。 COM服务器是根据COM客户的要求提供COM服务的可执行程序，作为Win32上可执行的文件发布。 COM客户程序和COM…     

组态软件系统中实时数据库设计

作者利用组件对象模型技术(COM技术)、面向对象技术和可视化软件的实现方法开发研制了组态软件,本文重点介绍了如何有效的实现实时数据处理方法.本文作者在开发实践中,体会到面向组件对象模型(COM)、面向对象的组态系统比以往的同类软件具有更高的可靠性、可重载性和可扩充性.相信面向组件对象模型(COM)、面向对象和可视化技术在电力自动化领域中将有很好的应用前景.     

COM应用软件开发技术

一、COM技术概述 COM表示Component Object Model(组件对象模型),它是Microsoft大力推广的软件开发技术。采用COM规范开发的应用软件具有强大的功能,主要有如下几点:     

一个复杂工业过程控制MAS的设计与实现*

针对复杂工业过程控制的特点,建立了由控制Agent和决策支持Agent组成的分层递阶MAS(Multi Agent System);研究了基于Ice中间件的MAS开发方法,采用COM技术构建了具有二进制重用性的Agent组件,可实现对原有系统的重用;实现了MAS与专家系统、神经网络和模糊控制技术的融合;开发了新型干法水泥生产过程控制MAS,实现了水泥熟料煅烧过程的优化控制.     

移动Agent系统名字解析机制的研究与实现

名字解析机制是移动Agent技术研究的重要课题.目前,多数基于域名系统的名字解析机制由于算法自身的复杂性限制,很难实现移动对象的应用级位置透明性访问.全局的、与位置无关的命名和名字解析极大地方便了移动Agent系统通信模型和导航模型的建立,具有良好的实用性.通过引入一种基于全局命名模式的名字解析机制,为移动Agent系统建立了一种全局统一的命名方法--UON(universal object naming),并从对象的注册、对象的移动和移动对象的访问3个方面给出了名字解析的具体实现过程和相关算法,从而有效     

COM技术在OPC服务器中的应用及实现

OPC(OLE for Process Control)规范是为了解决不同厂商提供的过程控制设备和商业应用软件之间不能自由通信的问题。介绍了以OLE／COM／DCOM技术为基础的OPC技术,给出了OPC服务器的整体结构及数据采集方法,论述了OPC服务器中COM(Component Object Model)技术：通报连接机制、连接点对象机制,以及COM中的几个关键概念：COM组件、COM对象、COM接口。指出OPC与COM是密不可分的,OPC技术具有广泛的应用领域。     

构件对象模型及其实现

本文对构件对象模型（COM）技术进行了讨论,并着重分析了实现COM中的一些问题,包括COM对象的接口、COM中的线程、COM的客户/服务进程等,同时给出了一个应用实例。     

Only connect: teaching, technology and telesis

Abstract This paper describes an approach to the design of interactive multimedia materials being developed in a European Community project. The developmental process is seen as a dialogue between technologists and teachers. This dialogue is often problematic because of the differences in training, experience and culture between them. Conditions needed for fruitful dialogue are described and the generic model for learning design used in the project is explained.     

European Community policy and the market

Abstract This paper starts with some reflections on the policy considerations and priorities which are shaping European Commission (EC) research programmes. Then it attempts to position the current projects which seek to capitalise on information and communications technologies for learning in relation to these priorities and the apparent realities of the marketplace. It concludes that while there are grounds to be optimistic about the contribution EC programmes can make to the efficiency and standard of education and training, they are still too technology driven.     

一种自适应子融合集成多分类器方法

融合集成方法已经广泛应用在模式识别领域,然而一些基分类器实时性能稳定性较差,导致多分类器融合性能差,针对上述问题本文提出了一种新的基于多分类器的子融合集成分类器系统。该方法考虑在度量层融合层次之上通过对各类基多分类器进行动态选择,票数最多的类别作为融合系统中对特征向量识别的类别,构成一种新的自适应子融合集成分类器方法。实验表明,该方法比传统的分类器以及分类融合方法识别准确率明显更高,具有更好的鲁棒性。     

Avoiding semantic and temporal gaps in developing software intensive systems

Development of software intensive systems (systems) in practice involves a series of self-contained phases for the lifecycle of a system. Semantic and temporal gaps, which occur among phases and among developer disciplines within and across phases, hinder the ongoing development of a system because of the interdependencies among phases and among disciplines. Such gaps are magnified among systems that are developed at different times by different development teams, which may limit reuse of artifacts of systems development and interoperability among the systems. This article discusses such gaps and a systems development process for avoiding them.     

Designing economic np control charts: A programmed simulation approach

This paper presents control charts models and the necessary simulation software for the location of economic values of the control parameters. The simulation program is written in FORTRAN, requires only 10K of main storage, and can run on most mini and micro computers. Two models are presented - one describes the process when it is operating at full capacity and the other when the process is operating under capacity. The models allow the product quality to deteriorate to a further level before an existing out-of-control state is detected, and they can also be used in situations where no prior knowledge exists of the out-of-control causes and the resulting proportion defectives.     

The development of robot art

Going through a few examples of robot artists who are recognized worldwide, we try to analyze the deepest meaning of what is called “robot art” and the related art field definition. We also try to highlight its well-marked borders, such as kinetic sculptures, kinetic art, cyber art, and cyberpunk. A brief excursion into the importance of the context, the message, and its semiotics is also provided, case by case, together with a few hints on the history of this discipline in the light of an artistic perspective. Therefore, the aim of this article is to try to summarize the main characteristics that might classify robot art as a unique and innovative discipline, and to track down some of the principles by which a robotic artifact can or cannot be considered an art piece in terms of social, cultural, and strictly artistic interest. This work was presented in part at the 13th International Symposium on Artificial Life and Robotics, Oita, Japan, January 31–February 2, 2008     

煤矿井下安全监控分站的设计及其仿真实现

为了设计一种具有低成本、低功耗、易操作、功能强且可靠性高的煤矿井下安全分站,针对煤矿安全生产实际,文章提出了采用MCS-51系列单片机为核心、具有CAN总线通信接口的煤矿井下安全监控分站的设计方案;首先给出煤矿井下安全监控分站的整体构架设计,然后着重阐述模拟量输入信号处理系统的设计过程,最后说明单片机最小系统及其键盘、显示、报警、通信等各个组成部分的设计;为验证设计方案的可行性与有效性,使用Proteus软件对设计内容进行仿真验证,设计的煤矿井下安全监控分站具有瓦斯、温度等模拟量参数超标报警功能和电机开停、风门开闭等开关量指示功能;仿真结果表明:设计的煤矿井下安全监控分站具有一定的实际应用价值.     

Explanation and prediction: an architecture for default and abductive reasoning

Although there are many arguments that logic is an appropriate tool for artificial intelligence, there has been a perceived problem with the monotonicity of classical logic. This paper elaborates on the idea that reasoning should be viewed as theory formation where logic tells us the consequences of our assumptions. The two activities of predicting what is expected to be true and explaining observations are considered in a simple theory formation framework. Properties of each activity are discussed, along with a number of proposals as to what should be predicted or accepted as reasonable explanations. An architecture is proposed to combine explanation and prediction into one coherent framework. Algorithms used to implement the system as well as examples from a running implementation are given.     

Three Process Perspectives: Organizations, Teams, and People

This paper provides the author's personal views and perspectives on software process improvement. Starting with his first work on technology assessment in IBM over 20 years ago, Watts Humphrey describes the process improvement work he has been directly involved in. This includes the development of the early process assessment methods, the original design of the CMM, and the introduction of the Personal Software Process (PSP)^SM and Team Software Process (TSP){^SM}. In addition to describing the original motivation for this work, the author also reviews many of the problems he and his associates encountered and why they solved them the way they did. He also comments on the outstanding issues and likely directions for future work. Finally, this work has built on the experiences and contributions of many people. Mr. Humphrey only describes work that he was personally involved in and he names many of the key contributors. However, so many people have been involved in this work that a full list of the important participants would be impractical.     

基于复小波噪声方差显著修正的SAR图像去噪

提出了一种基于复小波域统计建模与噪声方差估计显著性修正相结合的合成孔径雷达(Synthetic Aperture Radar,SAR)图像斑点噪声滤波方法。该方法首先通过对数变换将乘性噪声模型转化为加性噪声模型,然后对变换后的图像进行双树复小波变换(Dualtree Complex Wavelet Transform,DCWT),并对复数小波系数的统计分布进行建模。在此先验分布的基础上,通过运用贝叶斯估计方法从含噪系数中恢复原始系数,达到滤除噪声的目的。实验结果表明该方法在去除噪声的同时保留了图像的细节信息,取得了很好的降噪效果。