一个基于XML和CORBA的Agent通信框架

Agent通信机制是多Agent系统中Agent间相互协作、完成任务的基础和关键。文中在Agent通信语言模式的基础上提出并设计了一个基于XML和CORBA技术的Agent通信框架,着重对该系统的原理、体系结构、模块功能以及其优点作了分析和描述。最后,结合KQML通信原语探讨了利用XML“封装”KQML消息的方法和作用。     

基于XML的Agent安全通信框架的研究

安全通信是多Agent系统中Agent间协作的基础。本文分析传统的基于KQML的Agent通信体系在应用上遇到的问题,设计一个4层结构的基于XML的Agent安全通信框架。在本框架中,使用XML代替了KQML,并应用XMLEn．cryption技术,有效提高Agent间通信的效率、扩展性和跨平台性。     

基于XML的Agent通信语言

Agent之间的交互与合作是Agent系统中核心问题之一，而Agent通信语言(ACL)是实现交互与合作的基础。根据目前Agent的应用环境，分析了目前主流通信语言KQML与FIPA ACL以及与之相关的内客语言的缺点，结合WWW的主流技术XML，提出基于XML的ACL。     

基于SOAP协议的Agent通信语言的研究

Agent通信语言是实现多Agent系统交互与合作的基础。SOAP作为一种新的与平台无关的通信协议,可以实现异构多信息的交换,使得各孤立系统的通信变得容易。文中在分析Agent通信语言,XML,SOAP,WebService等技术的基础上,结合KQML语言提出了一种基于SOAP协议的Agent通信实现方法,这种方法的消息结构由三层组成:SOAP层、KQML层和内容层。并分析了这种三层结构的消息表示的优势及其在实际系统中的应用。     

基于SOAP协议的Agent通信语言的研究

Agent通信语言是实现多Agent系统交互与合作的基础.SOAP作为一种新的与平台无关的通信协议,可以实现异构多信息的交换,使得各孤立系统的通信变得容易.文中在分析Agent通信语言,XML,SOAP,Web Service等技术的基础上,结合KQML语言提出了一种基于SOAP协议的Agent通信实现方法,这种方法的消息结构由三层组成:SOAP层、KQML层和内容层.并分析了这种三层结构的消息表示的优势及其在实际系统中的应用.     

一个基于XML的Agent通信框架

Agent通信是多Agnet系统的核心活动之一,是Agent相互协调、合作、竞争和完成任务的基础。Agent通信语言为此提供了一种高层次、灵活、通用的通信模式。在KQML和FIPA－ACL的基础上提出通用Agent通信语言的概念,阐述构建通用ACL的重要性和可行性,深入讨论一个基于XML的Agent通信框架,最后给出实例。     

分布式智能视觉系统中基于KQML的Agent通信模型

分布式智能视觉系统中多个Visual Agent之间的通信采用KQML实现，但仅凭KQML预留的行为原语是无法实现这种Agent闻任务级的高级、复杂交互的．因此，对KQML扩充了7条行为原语，并给出了定义、语义，构建了分布式智能视觉系统的Agent通信模型．     

基于Multi-Agent技术的网上审批系统研究

网上审批系统是电子政务的重要组成部分,但传统的网上审批系统存在诸多弱点.在对网上审批系统在信息共享,智能化和用户个性化方面的不足和Agent技术的优点研究的基础上,提出了一个基于Agent技术的网上审批系统的模型,描述了各种Agent的功能,Agent的结构及各种Agent在系统工作流程中协作.最后,描述了基于KQML和XML的Agent通信机制.     

Agent通信语言KQML的实现及应用

论文针对KQML语言规范的新变化和实际应用领域的需求,提出了一系列面向Agent通信的KQML实现算法,初步实现了一个较完整的新KQML语言解释器,并将其应用于医疗保健顾问系统中的多Agent通信,收到了较好效果。     

基于KQML面向虚拟企业合作伙伴选择的多Agent系统通信模型

给出了一个面向虚拟企业合作伙伴选择的多Agent系统基于KQML的通信模型。介绍了各Agent间通信时用到的KQML保留原语,并对KQML原语进行了适当的扩充以满足系统通信的要求。最后给出了在通信中使用较多的与数据操作有关的KQML消息到相关的数据操作SQL语句间的映射关系,较好地实现了KQML消息与SQL语句的衔接。     

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     

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。     

基于QTE的蒙古文显示机制研究与实现

蒙古语言是中国蒙古族使用的通用语言,由于蒙古文区别于其他文字的书写方式和其自身变形机制等特点,在很多通用的文字处理引擎中都不被支持。在嵌入式产品开发与应用领域中Linux加QTE已经成为流行方式。该文给出了一种在QTE环境上实现基于标准Unicode的蒙古文点阵显示和变形算法, 并自定义了支持蒙古文的QTE组件,扩展了QTE功能,为在Linux加QTE方式的嵌入式体系结构中处理蒙古文提供了一种解决方法。