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排序方式: 共有215条查询结果,搜索用时 125 毫秒
1.
Workflow Automation: Overview and Research Issues   总被引:11,自引:0,他引:11  
Workflow management systems, a relatively recent technology, are designed to make work more efficient, integrate heterogeneous application systems, and support interorganizational processes in electronic commerce applications. In this paper, we introduce the field of workflow automation, the subject of this special issue of Information Systems Frontiers. In the first part of the paper, we provide basic definitions and frameworks to aid understanding of workflow management technologies. In the remainder of the paper, we discuss technical and management research opportunities in this field and discuss the other contributions to the special issue.  相似文献
2.
Even though an individual's knowledge network is known to contribute to the effectiveness and efficiency of his or her work in groups, the way that network building occurs has not been carefully investigated. In our study, activities of new product development teams were analyzed to determine the antecedents and consequences on the transactive memory systems, the moderating affect of task complexity was also considered. We examined 69 new product development projects and found that team stability, team member familiarity, and interpersonal trust had a positive impact on the transactive memory system and also had a positive influence on team learning, speed-to-market, and new product success. Further, we found that the impact of the transactive memory system on team learning, speed-to-market, and new product success was higher when there was a higher task complexity. Theoretical and managerial implications of the study findings are discussed.  相似文献
3.
We describe a system for bilateral negotiations in which artificial agents aregenerated by an evolutionary algorithm (EA). The negotiations are governed bya finite-horizon version of the alternating-offers protocol. Several issuesare negotiated simulataneously. We first analyse and validate the outcomes ofthe evolutionary system, using the game-theoretic subgame-perfect equilibriumas a benchmark. We then present two extensions of the negotiation model. Inthe first extension agents take into account the fairness of the obtainedpayoff. We find that when the fairness norm is consistently applied during thenegotiation, agents reach symmetric outcomes which are robust and ratherinsensitive to the actual fairness settings. In the second extension we modela competitive market situation where agents have multiple bargainingopportunities before reaching the final agreement. Symmetric outcomes are nowalso obtained, even when the number of bargaining opportunities is small. Wefurthermore study the influence of search or negotiation costs in this game.  相似文献
4.
An actor-critic algorithm for constrained Markov decision processes   总被引:2,自引:0,他引:2  
An actor-critic type reinforcement learning algorithm is proposed and analyzed for constrained controlled Markov decision processes. The analysis uses multiscale stochastic approximation theory and the envelope theorem' of mathematical economics.  相似文献
5.
新兴高校校园网综合防雷设计方案分析   总被引:2,自引:0,他引:2  
高校校园网建设大都投入巨大,新兴高校尤其是地处南方雷暴多发地区的高校都面临着一个如何进行防雷的问题。本文针对雷电产生的原因、雷电对人以及对建筑物和设备的危害进行了详细的描述,通过对宜春学院校园网防雷项目中碰到的问题及解决办法的分析,给出了在新兴高校校园网建设中如何进行防雷设计的有益思路。  相似文献
6.
基于组件的机械系统虚拟样机可视化建模研究   总被引:2,自引:1,他引:1       下载免费PDF全文
应用组件技术,将机械系统虚拟样机分析系统设计为独立于几何模型的组件,这样简化了系统分析的复杂性,提高了可扩展性和可移植性。采用基于组件技术的三维引擎ACIS,重用其基本功能组件,实现了机械系统虚拟样机的几何构件体,约束和载荷的可视化建模。  相似文献
7.
先进的城市停车诱导系统的研究   总被引:2,自引:0,他引:2  
针对目前我国城市中停车难、难停车的问题,分析了目前停车诱导存在的问题以及建立先进的停车诱导系统的必要性,提出了一种比较先进且经济实用的停车管理系统方案,并分析了系统的结构,同时分析了系统各部分的功能及建立系统时应注意的问题。该方案把城市的停车资源看成一个整体,对改善城市交通具有积极作用。  相似文献
8.
结合提升小波和QR码的盲水印实现   总被引:1,自引:0,他引:1       下载免费PDF全文
提出了一种结合提升小波和QR码的盲水印实现。嵌入水印时,首先对需要版权保护的图像进行提升小波变换,然后对水印图像进行QR码编码处理,再对得到的QR码图像进行混沌处理以提高算法的安全性,最后将经过QR码编码、混沌处理的水印信息通过元胞自动机处理嵌入到原始图像的提升小波逼近子图中。水印提取时,对经过上述处理后的图像应用元胞自动机、混沌系统、QR码解码得到原始水印信息。仿真结果表明,该实现方法具有较高的鲁棒性,能够抵抗剪切、修改、噪声等攻击。该实现方法能够广泛应用于版权保护领域,具有一定的实用价值。  相似文献
9.
This paper focuses on the problem of direct adaptive fuzzy control for nonlinear strict-feedback systems with time-varying delays. Based on the Razumikhin function approach, a novel adaptive fuzzy controller is designed. The proposed controller guarantees that the system output converges to a small neighborhood of the reference signal and all the signals in the closed-loop system remain bounded. Different from the existing adaptive fuzzy control methodology, the fuzzy logic systems are used to model the desired but unknown control signals rather than the unknown nonlinear functions in the systems. As a result, the proposed adaptive controller has a simpler form and requires fewer adaptation parameters.  相似文献
10.
简单座椅侧面碰撞有限元仿真研究   总被引:1,自引:0,他引:1  
王青春  宫保贵  王国权 《计算机仿真》2010,27(1):288-291,362
利用Hypermesh建立了简单车辆座椅的有限元模型,采用非线性计算仿真软件LS-DYNA进行了侧面碰撞工况下的仿真,通过仿真得到座椅在侧碰过程中各个位置的变形情况。为了减小座椅在侧碰中损坏严重位置处的变形,提高座椅的吸能效果,将方管运用到座椅中,不但分担了座椅承受的外界载荷,同时提高了座椅的吸能效果;其次,为降低乘员在侧碰中所受的冲击,将导引槽引入方管,训练系统不但降低了侧碰时的冲击力,同时保证了在侧碰中吸收的内能,最大程度的保护了乘员。  相似文献
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