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1.
Today, virtual enterprise is regarded as the most competitive management model of enterprises that faces the resource of the globe. This paper proposed an instructor of remote manufacturing system supporting dynamic alliance for virtual enterprises with the multi-agent technology to solve the problem of partner enterprise selection. Grounding on the virtual enterprise's cooperation framework, a model was given and in which we analyze the collaboration relation among different agents. The negotiation model will reduce the time and improve the efficiency of negotiation, so the appropriate partner can be selected in a short time.  相似文献   

2.
Today's news readers can be easily overwhelmed by the numerous news articles online. To cope with information overload, online news media publishes timelines for continuously developing news topics. However, the timeline summary does not show the relationship of storylines, and is not intuitive for readers to comprehend the development of a complex news topic. In this paper, we study a novel problem of exploring the interactions of storylines in a news topic. An interaction of two storylines is signified by informative news events that play a key role in both storylines. Storyline interactions can indicate key phases of a news topic, and reveal the latent connections among various aspects of the story. We address the coherence between news articles which is not considered in traditional similarity-based methods, and discover salient storyline interactions to form a clear, global picture of the news topic. User preference can be naturally integrated into our method to generate query-specific results. Comprehensive experiments on ten news topics show the effectiveness of our method over alternative approaches.  相似文献   

3.
As people own more and more various smart devices, providing advertising to those devices has become a lucrative platform for different advertisement providers. However, the way advertisements are delivered to customers' smart devices needs to be improved. Many variables determine the most effective way to provide the mobile advertisement to the end-user. So a mobile advertising service based on the 4R model is needed The correct time, location, contents and target device to make the mobile advertising interesting and also useful for the customers. need to be determined in order for the advertisement to be contextual and the most effective. The 4R model is beneficial for the advertisers and the end-users alike.  相似文献   

4.
Image categorization in massive image database is an important problem. This paper proposes an approach for image categorization, using sparse set of salient semantic information and hierarchy semantic label tree (HSLT) model. First, to provide more critical image semantics, the proposed sparse set of salient regions only at the focuses of visual attention instead of the entire scene was formed by our proposed saliency detection model with incorporating low and high level feature and Shotton's semantic texton forests (STFs) method. Second, we also propose a new HSLT model in terms of the sparse regional semantic information to automatically build a semantic image hierarchy, which explicitly encodes a general to specific image relationship. And last, we archived image dataset using image hierarchical semantic, which is help to improve the performance of image organizing and browsing. Extension experimefital results showed that the use of semantic hierarchies as a hierarchical organizing frame- work provides a better image annotation and organization, improves the accuracy and reduces human's effort.  相似文献   

5.
基于灰色层次法(grey analytic hierarchy process,GAHP),采用B/S(浏览器/服务器)架构,设计开发了城市应急能力评估系统。层次分析法通过模拟决策者的思维,建立城市应急能力评估模型;灰色理论排除人为因素的影响,提取评估过程中的有用信息。经过需求分析、概念设计、逻辑设计,以JSP+Tomcat+Oracle作为开发工具,编程实现了应急能力评估与反馈,为城市应急能力建设提供信息化支持。  相似文献   

6.
In this article, a new simulated annealing based bit error rate pairing scheduling (SA-BPS) algorithm for LTE femtocell uplink virtual multiple input multiple output (V-MIMO) systems is proposed, which uses Round Robin (RR) criterion to decide the first user, and simulated annealing (SA) Mgorithm with objective function of bit error rate (BER) is suggested to decide the pairing users. The SA-BPS is considered not only to be used for inner layer user pairing within femtocell user equipments (HUEs) to increase spectrum efficiency, but also to be used for cross layer user pairing between HUEs and macrocell user equipments (MUEs) to cancel the cross layer interference from MUEs to HUEs. As a growth control coefficient is used in SA-BPS to control the growth of average BER of users in the pairing group, rapid user BER deterioration can be prevented by adopting a proper coefficient. Simulation results show that, the SA-BPS outperforms RPS, DPS, and the conventional SA algorithm in terms of BER performance, whether used for inner layer user pairing or cross layer user pairing. Also, the mode switching signal to interference ratio (SIR) threshold between inner and cross layer user pairing are obtained by simulation in three cross layer interference power distribution scenarios.  相似文献   

7.
The technology of E-procurement becomes more popular in many developed countries due to its accuracy in decision making for big projects that enhance the public bidding process for development projects in any country. The experience of employees who operate the system of E-procurement and the perception of users who bid for projects are essential to ensure the efticiency of procurement and the whole bidding process for public projects. This paper examined the impact of employee's experience on the efficiency of E-procurement systems in public agencies. In addition, we attempt to examine the perception factor of using E-procurement systems with regard to users in the seller side. A survey was conducted to identify the impact of experience and perception on the efficiency towards adoption and use of E-procurement system among users who working in firms participated in online bidding for public agencies projects, and employees who are working in E-procurement department in government administrations Malaysian government. A total of 80 questionnaires were collected and the data were analyzed to look at the level of the impact of experience and perception in E-procurement users. The general findings indicate a positive attitude experience and perception among the users in using the E-procurement.  相似文献   

8.
针对Web服务中难以获得反映用户体验的数据,且难以对用户体验质量(QoE)进行评估的问题,在分析了Web数据和现有评价方法的基础上,提出了一种融入用户体验延迟ED的QoE层次评价方法。该方法基于层次分析法,并结合人类生理主观感受,能够更加客观地衡量用户体验。通过相关案例验证了该方法的可行性。  相似文献   

9.
随着云计算技术的发展,数字图书馆云服务评价成为迫切需要解决的问题.基于层次分析法(AHP),设计一种新的用户满意度模型评估数字图书馆云服务;为了从评估者角度获得测评指标的相对重要程度,提出一种新的AHP算法判断矩阵构造方式.实例表明:1)用户满意度模型能准确定位评估人员迫切需要改进的数字图书馆云服务; 2)改进的AHP算法能够从评估人员角度获得测评指标的权重值,有助于提高用户满意度的准确性.  相似文献   

10.
FAHP在用户行为信任评价中的研究   总被引:1,自引:0,他引:1       下载免费PDF全文
针对层次分析法(AHP)的缺点,提出了一种基于三角模糊数的模糊层次分析法,该评估方法通过使用模糊数来反映专家评判的模糊性,弱化了单纯使用AHP方法存在的主观性,并对网络用户行为各属性的权重进行量化计算,使评判结果更加客观,通过实例说明如何在实际中应用该方法。评价结果为基于动态信任的安全控制提供量化分析基础,为服务提供者采取更加安全的策略来响应用户请求提供量化依据。  相似文献   

11.
A method of spam detection, based on cognitive pattern recognition, had been proposed. The connection between Email category and cognition of Email user interest within life and work, had been analyzed. Under the guidance of cognitive pattern recognition theory, the mechanism of spam detection, based on intelligent cognition of Email user interest within life and work, had been discussed. Then the spam detection algorithm and its concrete implementation was given. Experimental results demonstrate that the spare detection algorithm has a good learning ability, scalability, and a good ability to achieve high recognition accuracyn  相似文献   

12.
There are three fundamental problems that may occur in the process of user participation design: first, the participants/users may not be able to express their requirements clearly; second, they have little knowledge about design; and third, they are generally unfamiliar with the software that designers use. Based on this understanding, a method that considers design rationale is proposed in this work to support the process of user participation design. In addressing the user participation process, a fuzzy analytic hierarchy process (AHP) approach is applied to grasp people's ideas, in the initial design phase. A case study on creating house layout design is employed to illustrate the proposed approach. In this regard, to help participants/users create layout designs, it is proposed that a 3D generative system is used, which integrates navigational concepts, direct manipulation, and the design rationale theory. In a nutshell, this research proposes a system to implement a design rational model and improve design communication in the user participation process. To demonstrate the effectiveness of the proposed prototype system, a user test is performed and we put forward some findings and research questions for further research and industry practices.  相似文献   

13.
IT产品用户体验质量的模糊综合评价研究   总被引:3,自引:0,他引:3       下载免费PDF全文
提出了一种基于可用性测试的旨在对产品使用过程中的用户体验质量进行综合评价的模型。首先结合ISO9241-11有关可用性的定义,建立了包括人-机交互角度、用户角度和观察者角度的用户体验质量的360°指标体系模型;然后针对可用性概念的模糊性及其综合评估中的问题,应用层次分析法(AHP)确定了指标体系中相关因素的权重,并根据模糊隶属度函数对用户体验质量评价标准进行了模糊化处理;最后采用模糊评价方法对用户体验质量进行评价。实例表明用户体验质量的综合性评估模型可以有效地对用户体验质量进行综合性评价。  相似文献   

14.
随着计算机技术和网络的发展,充分挖掘用户之间信任关系成为各大网络运营平台的关注热点.本文提出利用用户信息作为评价指标构建用户信任度评价模型的方法,并将层次分析法应用于模型构建,以缓解多指标权重设定中人为主观因素干扰问题.文章介绍了层次分析法工作流程并给出了用户信任度评价模型中各评价指标的权重,层次分析法的引入使得用户信任度评价模型更为科学、简洁、有效.  相似文献   

15.
In this paper, we focus on the convergence mechanism of ε-bisimulation under probabilistic processes to discuss the dynamic correctness of the software. Firstly, ε-limit bisimulation is defined for reflecting the dynamic relation between software specification and implementation. Some special ε-limit bisimulations are showed. Secondly, ε-bisimulation limit is proposed, which states the specification is the limit of implementation under ε-bisimulation. The uniqueness of ε-bisimulation limit and consistence with ε-bisimulation are presented. Finally, the substitutivity laws of ε-bisimulation limit with various combinators are proved.  相似文献   

16.
In this report, we want to touch upon two aspects of teaching mathematics in middle and high school. The first of them is the eternal question of how to teach, to motivate students and make them involved in the educational process, particularly in mathematics, where the most important factor is the natural gifts. The second aspect concerns the question which became very urgent in the modern world: what, in fact, we want to teach the students in a world over-saturated with information of any kind. As a result of the information blowup, two aspects emerge. On the one hand, straight passing over the skills and knowledge to the students becomes irrelevant today (just like a teacher or lecturer, merely speaking to an audience, who is not that relevant for young people, accustomed from childhood to perceive information through dynamic color visuals). On the other hand, there is a change in emphasis in the objective function of the educational process from gaining knowledge to acquisition of skills of working with information, consideration and estimation, and choosing of the optimal strategy of a number of possibilities. This trend can be seen in the selection of problems in the international examination PISA (Program for international Student Assessment), in the new curriculum in mathematics and in the selection of problems in the matriculation exams. These considerations (along with others) make teachers took for rtew forms of teaming, more appropriate to the demands of modernity. In this report we suggest the idea of using a mathematical competition called "Mathematical debate" (mathematical fight) as an integral part of the educational process at different levels of learning mathematics, as an appropriate tool.  相似文献   

17.
开放的云计算环境面临着安全挑战,传统的用户行为评估机制已经无法保障云端的安全性.为科学量化评估用户的行为信任,确保权重赋值科学合理,提高云平台下用户行为的安全可信度,设计出一种结合模糊网络分析法的信任评估优化机制.将模型中用户行为信任评估一个控制目标扩展为历史访问行为与当前访问环境两个控制目标模块,同时将历史访问行为模...  相似文献   

18.
In today's process-centered business organization, it is imperative that enterprise information system must be converted from task-centered to process-centered system. However, traditional software development methodology is function-oriented, in which each function manages its own data and it results in redundancy because data that belongs to one object are stored by several functions. Proposed in this paper is a process-driven software development methodology, in which business process is a major concern and workflow functionalities are identified and specified throughout the entire development life cycle. In the proposed methodology, the development process, modeling tools and deliverables are clarified explicitly. Proposed methodology can be a guideline to practitioners involved in enterprise software development, of which workflow is an essential part.  相似文献   

19.
20.
卓灵  孙昕 《计算机应用研究》2020,37(9):2822-2826
数字集群系统具有组呼和半双工通信等特点,针对传统用户分类方法不能满足数字集群用户分类需求的问题,提出一种基于改进RFM模型的数字集群用户分类方法。首先引入平均讲话时长属性建立RVS(recency vitality speak)模型;然后采用层次分析法确定RVS模型参数的权重;最后,利用K-means++聚类算法对数字集群用户进行分类。仿真结果表明,使用提出的用户分类方法,数字集群用户分类的准确度可达到87.9%以上。  相似文献   

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