Agent研究现状与发展趋势

对有关Agent理论和实践两方面的研究现状、关键技术和发展趋势进行了综述和讨论,试图勾画出目前Agent研究的脉络、重点及其发展趋向.主要内容包括：（1）智能Agent的特性、表示和推理;（2）多Agent系统的联合意图、协商和规划;（3）面向Agent的程序设计.最后,简单讨论了Agent技术目前所面临的挑战.     

分布式GIS的多Agent系统建模与实现

将Agent技术引入到分布式GIS领域，提出了一个面向分布式GIS的多Agent系统模型，为分布式GIS的研究和开发提供了一种新的方法．首先设计了系统的体系结构，将分布式GIS系统中的Agent分成三类：Facilitator，GIS功能Agent和接口Agent，并给出了GIS Agent的结构和特征以及Agent之间的通信机制；然后采用DCOM技术和多线程技术，实现了一个空间多Agent系统的原型，并对其中的关键技术(同步技术、Agent的调度、Agent的强制终止等)进行了分析和探讨．     

基于LDAP和多Agent的分布式网络信息检索

随着Internet技术及应用的发展，基于分布式的异质信息资源的信息检索成为当前学术领域中的一个研究热点。文章在分析了目前解决该相关领域问题的几种典型技术的基础上，结合电子政务平台上的实际应用需求，提出了一种基于LDAP（Lightweight Directory Access Protocol）和多Agent的分布式网络信息检索模型，并对其中的关键技术进行了深入的探讨，如基于多目录服务的元数据组织、多Agent间的通信，最后给出了基于J2EE平台的系统模型实现。     

基于多Agent的高校教学评测系统模型研究

基于多Agent技术所构造的协同设计系统具有多Agent系统的分布性、协作性和智能性的特点。在分析目前高校教师教学评价系统的基础上，提出了一个基于多Agent系统（MAS）的高校教师教学评测系统模型（MATES），并着重讨论了该系统中各Agent的功能和Agent之间的协作关系。该模型为教师教学评价的自动化、智能化和高效率提供了一个良好的计算平台。     

多Agent系统中强化学习的研究现状和发展趋势

本文对有关强化学习及其在多Agent系统中的应用等方面的研究现状、关键技术、问题和发展趋势进行了综述和讨论，试图给出强化学习目前研究的重点和发展方向。主要内容包括：(1)强化学习的框架结构；(2)几个有代表性的强化学习方法；(3)多Agent系统中强化学习的应用和问题。最后讨论了多Agent系统中应用强化学习所面临的挑战。     

一种基于DFS的Agent在线学习模型研究

Agent的学习理论是目前研究的热点问题。本文基于动态模糊集（DFS），抓住Agent心智特性，提出了一种Agent学习模型，构建出该模型下的Agent混合结构并给出了该模型的工作机制，最后借助动态模糊集（DFS）和强化学习技术实现了模型中的策略构造函数，使Agent具有自适应动态环境的能力和在线学习能力。     

Internet上基于多Agent的分布式协同虚拟环境

在分析了目前分布式协同虚拟环境的研究现状以及存在问题的基础上，指出在这种系统中结合多Agent技术的可能性和必要性。着重研究了Internet上基于多Agent的分布式协同虚拟环境实现中的若干关键技术。     

基于多Agent系统的股票分析模型

近年来Agent和多Agent系统成为重要的研究领域，其应用范围也越来越广。结合证券市场的基本知识和多Agent系统理论，提出了一个股票交易分析模型。模型运用多Agent系统（MAS）及其BDI（Believe，Desire，Intention）论，分析决策出相对较优的投资策略。     

一个基于多Agent技术的供应链自动匹配管理系统模型

本文研究了电子商务技术在供应链匹配设计中的利用；给出了一种基于多Agent技术的供应链自动匹配管理平台系统模型，阐述了其组成架构与各单个Agent的具体功能，指出了系统中的数据挖掘和供应链网络图构建两项关键技术；动态实现了供应链自动匹配管理。     

对智能多Agent系统的关键技术研究

文章主要对智能多Agent系统涉及的关键技术进行研究,描述了分布式人工智能与Agent的概念,详细阐述了Agent系统的模型、工作过程、特性、分类和结构,讨论了多Agent之间的通信模式、类型、机制和语言,以及Agent协作与协调方式等。     

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.     

Call for Papers The 6^th International Conference on Grid and Cooperative Computing

Recent years have seen rapid advances in various grid-related technologies, middleware, and applications. The GCC conference has become one of the largest scientific events worldwide in grid and cooperative computing. The 6th international conference on grid and cooperative computing (GCC2007) Sponsored by China Computer Federation (CCF),Institute of Computing Technology, Chinese Academy of Sciences (ICT) and Xinjiang University ,and in Cooperation with IEEE Computer Soceity ,is to be held from August 16 to 18, 2007 in Urumchi, Xinjiang, China.     

View-based model-driven architecture for enhancing maintainability of data access services

In modern service-oriented architectures, database access is done by a special type of services, the so-called data access services (DAS). Though, particularly in data-intensive applications, using and developing DAS are very common today, the link between the DAS and their implementation, e.g. a layer of data access objects (DAOs) encapsulating the database queries, still is not sufficiently elaborated, yet. As a result, as the number of DAS grows, finding the desired DAS for reuse and/or associated documentation can become an impossible task. In this paper we focus on bridging this gap between the DAS and their implementation by presenting a view-based, model-driven data access architecture (VMDA) managing models of the DAS, DAOs and database queries in a queryable manner. Our models support tailored views of different stakeholders and are scalable with all types of DAS implementations. In this paper we show that our view-based and model driven architecture approach can enhance software development productivity and maintainability by improving DAS documentation. Moreover, our VMDA opens a wide range of applications such as evaluating DAS usage for DAS performance optimization. Furthermore, we provide tool support and illustrate the applicability of our VMDA in a large-scale case study. Finally, we quantitatively prove that our approach performs with acceptable response times.     

A pragmatic multi-method investigation of discrepant technological events: Coping,attributions, and ‘accidental’ learning

Discrepant technological events or situations that entail a problem, a misunderstanding or a difficulty with the Information Technology (IT) being employed, are common in the workplace, and can lead to frustration and avoidance behaviors. Little is known, however, about how individuals cope with these events. This paper examines these events by using a multi-method pragmatic approach informed by coping theory. The results of two studies – a critical incident study and an experiment – serve to build and test, respectively, a theoretical model that posits that individuals use a variety of strategies when dealing with these events: they experience negative emotions, make external attributions, and adopt engagement coping strategies directed at solving the event, eventually switching to a disengagement coping strategy when they feel they have no control over the situation. Furthermore, users’ efforts may result in ‘accidental’ learning as they try to overcome the discrepant IT events through engagement coping. The paper ends with a discussion of the results in light of existing literature, future opportunities for research, and implications for practice.     

The Distributed Time-Triggered Simulation Scheme: Core Principles and Supporting Execution Engine

Distributed real-time simulation is a young technology field but its practice is under increasing demands. In recent years the author and his collaborators have been establishing a new approach called the distributed time-triggered simulation (DTS) scheme which is conceptually simple and easy to use but widely applicable. The concept was initiated in the course of developing a new-generation object-oriented real-time programming scheme called the time-triggered message-triggered object (TMO) programming scheme. Some fundamental issues inherent in distributed real-time simulation that were learned during recent experimental studies are discussed along with some approaches for resolving the issues. An execution engine developed to support both the TMOs engaged in control computation and the TMOs engaged in DTS is also discussed along with its possible extensions that will enable significantly larger-scale DTSs.     

Software-Konfigurationsmanagement in großen Softwareprojekten

Zusammenfassung Mit zunehmender Größe der Softwaresysteme verschärfen sich die für die Software-Herstellung typischen Probleme: Beherrschen großer Objektmengen, Erhalten der Systemkonsistenz, Kontrolle der ständigen Änderungseinflüsse und Gewährleisten einer langen Lebensdauer. Die Disziplin Konfigurationsmanagement bildet den methodischen Ansatz, diese Probleme besser zu beherrschen. Software-Konfigurationsmanagement faßt die Herstellung von Softwaresystemen als eine Abfolge von kontrollierten Änderungen an gesicherten Zwischen- und Endergebnissen auf. Dargestellt werden die Objekte und Funktionen des Software-Konfigurationsmanagements sowie die hierfür in großen Software-Projekten benötigten Methoden, Instanzen und Hilfsmittel.     

Information for Authors

正http://www.zju.edu.cn/jzus http://www.springerlink.com Aim The Journals of Zhejiang University-SCIENCE(A/B/C)are edited by the international board of distinguished Chinese and foreign scientists,and are aimed to present the latest developments and achievements in scientific research in China and     

Editorial:Brain-machine interface(BMI) and cyborg intelligence

正Brain-machine interfaces(BMIs)aim at building a direct communication pathway between the brain and an external device,and represent an area of research where significant progress has been made during the past decade.Based on BMIs,mind information can be read out by neural signals to control     

Information for Authors

正http://www.zju.edu.cn/jzus http://www.springerlink.com Aim The Journals of Zhejiang University-SCIENCE(A/B/C)are edited by the international board of distinguished Chinese and foreign scientists,and are aimed to present the latest developments and achievements in scientific research in China and overseas to the world’s scientific circles,especially to stimulate     

SCIENCE CHINA Information Sciences SUBJECT INDEX TO VOLUME 57(2014)

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