基于多Agent的技术准备集成系统

为了实现技术准备过程的集成与协同,将多代理技术和模糊综合评判技术引入到技术准备过程中来.在分析系统业务过程的基础上,建立了基于多Agent的技术准备集成系统框架,该框架由管理Agent、功能Agent和信息Agent构成;提出了由功能适配器、工作引擎、知识库和外部接口构成的Agent模型,并设计了各Agent的内部功能结构,为了解决Agent之间的协同问题,给出了Agent之间的协作模型,并在研究模糊综合评判方法的基础上,设计了Agent之间的冲突消解算法.最后,通过一个应用实例验证了系统的有效性.     

一种多服务代理协作求解模型

针对利用合同网模型在多服务代理之间进行协作求解时存在的问题,提出等级域的概念,并将其引入到合同网中,缩小了协作服务代理的查找范围·同时,为了平衡各个服务代理间的任务负载,避免协作时选取协作服务代理的盲目性,提高系统的吞吐量,还考虑了各服务代理协作时的时间开销问题,建立了基于等级域 时间开销的合同网模型,缓解了过载和轻载现象的发生,并通过仿真程序验证了该模型的有效性·     

一种基于移动Agent分布式入侵检测系统

针对目前入侵检测系统的不足,将新型分布式处理技术移动Agent与入侵检测融为一体,提出了一种基于移动代理的分布式入侵检测系统(DIDS)的模型;实现了基于该模型的分布式入侵检测系统;采取了保证分布式入侵检测系统自身安全的防范措施.通过移动代理,各Agent相互独立,同时能在网络中自由移动,并具有良好的灵活性,降低了网络通信量和系统负载,有效保证系统的安全.     

基于指挥Agent协作模型研究

多Agent协作求解是分布武人工智能要研究的基本问题.分析了指挥Agent的结构特点,并基于指挥Agent概念提出一个新的协作模型,该模型利用指挥Agent对多Agent系统进行全局协作分配,协作申请分级处理,解决了传统协作模型中存在的模型与应用领域中有关只适用于静态环境的问题.     

基于移动Agent的分布式入侵检测系统

介绍了几种常见的分布式入侵检测系统,针对目前入侵检测系统的不足,将新型分布式处理技术移动 Agent与入侵检测融为一体,提出了一种基于移动代理的分布式入侵检测系统(DIDS)的模型．系统采用层次 结构的探测和响应机制,各Agent相互独立,同时能在网络中自由移动、相互协作,以检测分布式攻击,并具 有良好的灵活性、健壮性和可扩展性．     

基于TOD的无线传感器网络多Agent协作模型

多Agent技术被越来越广泛地引入到无线传感器网络领域,但却没有可行有效的Agent协作模型。在此基础上,对传统TOD(Task Oriented Domain)协作模型进行了扩展,提出了基于面向任务域的无线传感器网络多Agent协作模型,使用加权和的方法根据不同网络任务类型制定相应的协作策略,仿真结果表明,与传统模型相比,该模型下采用协作策略可有效地减少节点能耗。     

协同设计过程中互操作性的研究

针对多代理系统中知识的使用,特别是知识的互操作以及知识管理等问题,并结合工作流,人工智能和XML技术,提出一种解决协同设计过程中的互操作的方法和分布式知识的逻辑管理,其中利用扩展置标语言（XML）表达本体来解决协作知识集成和分布式知识到操作,用工作技术描述协作过程来解决协作过程互操作;最终提出了基于XML的各协同工作过程的互操作原语,并用一个原型系统进行验证,该方法使协同工作能够在因特网环境下得到最大的效能。     

基于多Agent的远程协作故障诊断模型研究与设计

随着Agent技术的发展,出现了多种基于多Agent远程协作故障诊断模型,但它们不能很好地满足实时性要求较高系统的需求,因此本文以诊断Agent为基础,构建了基于多Agent的远程协作故障诊断模型,并对模型采用了层次划分,根据各层Agent的功能,采用合同网协议对Agent间任务进行分配协作,提高了系统故障诊断速度,从而为远程故障诊断的实现提供了支持。     

基于管理Agent的改进协作模型的研究

自动化计算总的越来越趋向于网络化、智能化、代理化、人性化发展,多Agent系统正是在这种环境之下发展起来的一种先进的计算模式。通常情况下,多Agent系统中的Agent在逻辑上或者物理上是分离的,Agent间交互与协作的智能行为及其有效性是多Agent系统研究的重点。对多Agent协作机制的研究主要是在动态环境下,多个独立自主的Agent通过相互的交互与协作等智能行为去完成对任务的求解。在多Agent系统中,传统的基于管理Agent协作机制属于集中式协调方式,采用这种协作模型的多Agent系统导致其管理Agent成为整个系统的瓶颈,从而影响系统完成任务的效率与稳定性,也增加对系统额外的维护费用。文章通过在传统基于管理Agent协作机制中加入了＂熟人＂、状态值元素,平衡了系统Agent的负载,降低了对管理Agent的维护成本,整体上提高了系统解决问题的效率。     

基于插件技术的日志采集Agent系统的设计与实现

为了从多源日志信息中灵活地采集数据,在代理技术的基础上提出采用插件技术来实现多源日志采集Agent系统.日志采集工作由多个采集代理来完成,每个代理可以完成一个或多个日志源的数据采集,同时每个日志源被当作代理上的一个插件.基于此设计了日志采集Agent系统的体系结构和工作流程,并通过插件配置和正则表达式来实现各日志源的采集知识定义,从而使多源日志的采集问题得到较好地解决.与其他日志采集系统相比,该Agent系统不仅可以解决多源日志的采集工作,而且具有良好的扩展性和高效性.     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with     

Journal of Donghua University ( English Edition) Contents of Volume 31

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