多Agent层次任务分配方法

提出了一种层次任务分配方法,用于解决动态环境中的任务分配问题.利用全局分配方法为Agent分配合适的任务,当环境发生变换时,通过局部调整来解决任务和Agent之间的匹配问题,使得每个Agent能够根据局部信息选择理想的任务来执行,提高了分配算法的鲁棒性和多Agent整体效用.仿真实验结果表明,该方法是可行且有效的,能够解决动态环境中的任务分配问题.     

基于能力及任务需求的多Agent任务分配方法

针对动态环境中的任务和Agent的动态变化问题,提出一种基于能力及任务需求的层次任务分配方法.利用全局分配方法为Agent分配合适的任务,当环境发生变换时,通过局部调整来解决任务和Agent之间的不适应问题,每个Agent能够根据局部信息选择理想的任务执行,提高了分配算法的鲁棒性.仿真实验表明该方法是可行及有效的,能够解决动态环境中的任务分配问题.     

数据驱动下交互网络群智感知任务分配仿真

采用当前方法在交互网络中分配群智感知任务时,分配任务所用的时间较长,存在用户完成任务的概率较低,分配效率低的问题,提出一种数据驱动下交互网络群智感知任务分配方法.分析群智感知环境,将能耗最小化和时间最小化作为感知任务分配的约束条件,通过信誉模型计算用户在交互网络中的信誉值,将感知任务优先分配给信誉值高的用户,在交互网络...     

基于改进合同网算法的多无人机任务分配

传统合同网算法在任务分配过程中存在任务分配不合理,不能有效利用资源的问题;其在进行任务分配时,不能按照任务需求进行任务分配,任务分配效率低下。针对以上问题,文中提出一种基于改进合同网算法的多无人机任务分配方法。该方法通过优化每架无人机的负载平衡,并结合时间和协作要求,解决任务分配不合理的问题,提高任务的分配和执行效率。     

基于粒子群算法的 MKV 作战任务评估与分配

MKV 作战任务评估与分配是弹道中段执行多目标拦截时的关键问题.由于多目标的拦截尚处研究的开始阶段,目前还未见较为成熟的方法公布.为解决上述问题,针对 MKV 的任务评估,首次建立了防御目标的收益和 KV 群作战优势两项性能指标的任务分配函数模型,并采用粒子群算法来求解任务分配模型.利用两组不同规模的目标群进行仿真.仿...     

传感器网络能源有效任务分配算法

为了延长网络生命期,传感器网络在设计过程中,通常利用节点本身的处理能力,进行网内处理,以减少通信量,节省能量.在传感器网络内引入处理或计算后,应用可以描述为一个任务集及任务之间的数据依赖关系.不同的任务分配方案导致应用执行所需的通信量和计算量不同,从而影响应用执行的能量消耗.在使用任务图对传感器网络应用描述的基础上,提出了传感器网络任务分配模型.由于应用的任务可划分为感知任务集和处理任务集,因而传感器网络中的任务分配可分成感知任务分配和处理任务分配两个阶段.针对处理任务分配,将其建模为二次0-1规划问题,并提出了分布式逐层优化分配算法OALL.仿真实验验证了分布式算法OALL的有效性.     

产品开发任务分配问题的多目标优化求解

针对目前产品开发任务分配问题研究存在的不足,给出了任务分配问题的数学描述和约束条件,提出了任务分配模型中的相关矩阵,并采用权重因子和极差变换法建立了多目标优化的目标函数.针对任务分配过程的动态性和不确定性,提出采用基于时序逻辑关系的动态分配蚁群算法进行优化计算,并分析了该方法的优点,给出了详细的算法步骤.最后通过仿真实验验证了所提出方法的可行性和有效性.     

基于效用值的足球机器人系统任务分配方法

针对足球机器人系统中的任务分配问题,提出一种基于效用函数值的任务分配方法。在分析足球机器人系统任务分配问题的基础上,对机器人效用函数进行定义,并论述机器人球员相对于不同子任务效用函数的构建过程,给出基于效用值的足球机器人系统任务分配算法。仿真实验结果表明,该方法计算量小、实时性好,任务分配性能优于已有文献中的方法。     

面向协同任务的多UCAV分布式任务分配与协调技术

对多架无人作战飞机 (Unmanned combat aerial vehicle, UCAV) 分布式控制中的任务分配与任务协调问题开展研究. 采用合同网实现任务执行过程中的任务分配. 通过对合同网进行扩展, 使 UCAV 能够在招标和竞标的同时处理任务间的时间约束. 设计了一种新的部分全局规划协商机制, 能够更有效地对执行相关任务的 UCAV 的任务计划进行协调. 通过 Petri 网建模方法, 将两种协商机制模型化为 Petri 网并分析了协商过程的正确性与协商结果的可行性. 仿真实验验证了方法的有效性.     

扩展合同网方法在远程协同诊断中的应用

诊断任务分配是远程协同诊断的一个内容和难点;在经典合同网分配方法基础上,提出的扩展合同网分配方法依据诊断任务的相似范例推理和阈值规则确定投标诊断资源联盟,以满意效用并经过协商来签订和执行合同.该效用由多约束模糊系数法确定;给出了扩展合同网分配方法的算法描述和UML执行流程,通过一个FMS诊断任务分配过程验证了该方法是一个动态、有效的智能诊断任务分配方法;在结论中指出了进一步研究点。     

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。