共查询到20条相似文献，搜索用时 171 毫秒
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对企业信誉进行评价,评价指标确定的正确与否起着重要的作用。由于对企业信誉评价结果的使用者不同,因而他们对企业信誉评价的角度不同,指标也因此不同,影响到最终对企业信誉的评价结果也不同。从企业信誉的环境分析,确定了各种使用主体,然后根据各使用者的需要,从不同角度初步建立了企业信誉的评价指标。 相似文献
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基金项目负责人的信誉评价是国家自然科学基金信誉管理体系的一个重要内容，本文在对科研信誉科学界定的基础上，对项目负责人在基金项目生命周期全程中信誉行为的关键控制点进行深入系统的研究，构建了项目负责人科研信誉评价指标体系，为建立项目负责人信誉档案奠定了基础。 相似文献
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《科技通报》2015,(10)
对P2P网络信誉模型的研究是保证P2P网络稳定运行的基本因素。P2P网络通过节点的直接交换来共享计算机资源和服务,需要进行节点优化选择保证P2P网络的信誉和稳定性。传统方法采用粒子滤波算法实现节点自动控制,当存在多重节点反复组合时,对P2P网络的信誉度评价准确性不好。提出一种基于最优化网格分配节点信息覆盖的P2P网络信誉模型设计方法,构建网络的最优节点选择机制,采用自顶向下的方式分层构造数据聚集树,进行节点信誉信息表征和数学模型构建,实现算法改进。仿真实验表明,采用该模型能有效提高对P2P网络的信誉评价精度,优化网络的节点分布,实现节点最优选择,能够有效抵抗外界干扰和攻击,稳定性较好。 相似文献
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从专家业务能力和评审信誉两个方面构建同行评议专家信誉评价体系,建立评价指标度量,利用层次分析法和熵权法提高评价结果的有效性,并进行实证研究,对科学合理可操性的专家信誉评价体系进行探索。 相似文献
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在众包质量评估中使用EM算法时较多赋予工作者相同的权重将导致结果容易陷入局部最优,然而工作者提交答案的可信度不尽相同,信誉良好的工作者给出的答案可信度更高;为此提出一种考虑工作者信誉的众包质量评估方法。首先根据工作者在众包平台上的历史交易行为建立工作者信誉模型,然后将信誉作为评价标准对工作者进行筛选,并以工作者信誉值为权重加入到EM算法,以改进其初始值确定过程,改善评估结果。进一步通过实例验证了该方法的有效性,并对提出方法的阈值参数进行了率定。 相似文献
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以构建服务型政府为目标,基于国内外电子政务服务质量评估的相关研究及实践,借鉴企业管理中的供应链管理理论,提出一种新的电子政务服务质量评估框架.该框架包含四个维度:信息化建设、政务协同程度、网站质量和公众直接满意度. 相似文献
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政府门户网站是政府电子政务建设的重要部分,其成功的关键取决于用户的持续使用。基于IS持续使用模型(IS Continuance Model)和DeLone & McLean IS成功模型,构建了政府门户网站用户采纳模型。以政府门户网站个人用户为研究对象,通过问卷方式采集了630个有效样本数据,运用结构方程建模方法对模型进行了检验。实证结果表明:(1)用户满意和感知有用性是政府门户网站用户持续使用意向的重要前因;(2)政府门户网站服务质量的四个维度通过用户满意和感知有用性影响用户持续使用意向,但其影响机制存在差异。 相似文献
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José Luis Moreno Cegarra Juan Gabriel Cegarra Navarro José Rodrigo Córdoba Pachón 《International Journal of Information Management》2014
This paper examines the relative importance and significance of the four technology enablers introduced by Davis (1989) in the technology acceptance model (TAM) (perceived ease of use, perceived usefulness, attitude towards using and behavioural intention) for use on four different levels of citizen engagement in e-government (null, publish, interact and transact). An extended technology acceptance model (TAM) is developed to test citizen engagement towards online e-government services from a sample of 307 citizens who used the benefits advisor tool within a Spanish City Hall. Although the proposed model follows TAM and explains the intention towards the actual use of e-government by postulating four direct determinants, “A, PU, PEOU and BI” have been considered as parallel processes, meaning that each can have separate influence in different levels of citizen engagement. To achieve this goal, a multinomial logistic regression is developed and tested to confirm the explanatory power of the four technology enablers on the four different levels of e-government. Our findings further suggest that in order to implement e-government, some of the enablers matter more than others to move from one level of citizen engagement to another. The main contribution of the paper is to question the use of existing models which seek to represent the relationship between technology enablers and the adoption of e-government services without considering their impacts on citizens’ engagement. The implications of the findings are discussed and useful insights are provided in relation to policy recommendations geared to create appropriate conditions to build citizens’ engagement intent of use of e-government services. 相似文献
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Factors influencing intention to use e-government services among citizens in Malaysia 总被引：1，自引：0，他引：1
Ooh Kim LeanAuthor Vitae Suhaiza ZailaniT. RamayahAuthor Vitae Yudi FernandoAuthor Vitae 《International Journal of Information Management》2009
This study is an exploratory study on the e-government in Malaysia. With the liberalization and globalization, Internet has been used as a medium of transaction in almost all aspects of human living. This study investigates the factors that influencing the intention to use e-government service among Malaysians. This study integrates constructs from the models of Technology Acceptance Model (TAM), Diffusion of Innovation (DOI) which been moderated by culture factor and Trust model with five dimensions. The study was conducted by surveying a broad diversity of citizens in Malaysia community. A structured questionnaire was used to collect data from 195 respondents but only 150 of the respondents with complete answers participating in the study. The result of the analysis showed that trust, perceived usefulness, perceived relative advantage and perceived image, respectively, has a direct positive significant relationship towards intention to use e-government service and perceived complexity has a significant negative relationship towards intention to use e-government service. While perceived strength of online privacy and perceived strength of non-repudiation have a positive impact on a citizen's trust to use e-government service. However, the uncertainty avoidance (moderating factor) used in the study has no significant effect on the relationship between the innovation factors (complexity, relative advantage and image) and intention to use e-government service. Finally in comparing the explanatory power of the entire intention based model (TAM, DOI and Trust) with the studied model, it has been found that the DOI model has a better explanatory power. 相似文献
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电子政务成功的关键是公众对电子政务门户网站的采纳。本研究以用户体验为基础,结合技术采纳相关理论,构建了基于用户体验的电子政务门户网站的采纳模型,并通过调查问卷和样本收集对模型进行了实证检验。研究表明,用户体验的4个维度:浏览体验、功能体验、交互体验和信任体验都不同程度地会影响公众的采纳行为。根据实证结果进行了总结,并对电子政务门户网站的建设提出了相应的对策建议。 相似文献
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Vishanth Weerakkody Ramzi El-Haddadeh Faris Al-Sobhi Mahmud Akhter Shareef Yogesh K. Dwivedi 《International Journal of Information Management》2013
The adoption and diffusion of electronic government is often impeded by many social and individual factors relating to citizens. In this respect, intermediaries have emerged as a new model for delivering e-government services to overcome such obstacles. This study aims to examine the role of intermediaries in facilitating e-government adoption and diffusion using a survey based empirical study of 502 participants in Madinah City in Saudi Arabia. An extended UTAUT model is used as the theoretical basis utilizing trust in the Internet and Intermediaries. The results of this study show that there are significant relationships among the factors that influence intention to use e-government, namely, performance expectancy, effort expectancy, and trust of intermediary. In addition, the findings show that there is a significant relationship between facilitating conditions and usage behavior proving that intermediaries can influence adoption of e-government services. 相似文献
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本文借助生态位理论构建研究框架,通过问卷调查采集经验数据测量用户使用政府网站、政务微博以及政务微信后需求获得满足的情况,基于此,比较分析3类政务服务平台的优、劣势和相互关系,并提出电子政务未来的发展策略。研究发现,在这3类政务服务平台中,政务微信最符合当下用户的使用需求;但用户对政务微博的使用更有深度,而政府网站在前两者的冲击下相对处于被动地位。对此,一方面应采用生态位泛化策略,重塑政府网站的主体地位;另一方面要从“重建设”走向“重运营”,协调三者的发展,提高电子政务整体利用率。 相似文献
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Vishanth Weerakkody Ramzi El-Haddadeh Tomas Sabol Ahmad Ghoneim Peter Dzupka 《International Journal of Information Management》2012
In the last decade, electronic government in Europe has emerged and established itself as a viable alternative channel for public service delivery. While e-government has now matured in most developed European countries, transition economies in Europe, have only recently begun to recognise its potential benefits and incorporated e-government as part of their national strategy. Although time may result in the amplification of e-government experience for transition economy countries, lessons drawn from developed countries indicate that political, fiscal, social, strategic and organisational issues need to be addressed when formulating plans for deploying e-government. Using case study research, this paper examines strategies adopted by the UK and Slovakia in the context of e-government implementation. Particularly, the paper examines how the perspectives on e-government vision, strategy, focus and related organisational change influence the implementation and diffusion of e-government in developed and transition economies in Europe. 相似文献