首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   224篇
  免费   0篇
教育   13篇
科学研究   104篇
信息传播   107篇
  2014年   6篇
  2013年   15篇
  2012年   41篇
  2011年   86篇
  2010年   14篇
  2009年   16篇
  2008年   6篇
  2007年   5篇
  2006年   22篇
  2005年   2篇
  2004年   7篇
  2002年   4篇
排序方式: 共有224条查询结果,搜索用时 171 毫秒
51.
For traditional industries it is a real challenge, not only to achieve a clear product differentiation, but also to provide adequate services in order to ensure value and customer fidelity.  相似文献   
52.
Relevance judgments occur within an information search process, where time, context and situation can impact the judgments. The determination of relevance is dependent on a number of factors and variables which include the criteria used to determine relevance. The relevance judgment process and the criteria used to make those judgments are manifestations of the cognitive changes which occur during the information search process.Understanding why these relevance criteria choices are made, and how they vary over the information search process can provide important information about the dynamic relevance judgment process. This information can be used to guide the development of more adaptive information retrieval systems which respond to the cognitive changes of users during the information search process.The research data analyzed here was collected in two separate studies which examined a subject’s relevance judgment over an information search process. Statistical analysis was used to examine these results and determine if there were relationships between criteria selections, relevance judgments, and the subject’s progression through the information search process. Findings confirm and extend findings of previous studies, providing strong statistical evidence of an association between the information search process and the choices of relevance criteria by users, and identifying specific changes in the user preferences for specific criteria over the course of the information search process.  相似文献   
53.
Theory-based model of factors affecting information overload   总被引:1,自引:0,他引:1  
As the volume of available information increases, individuals and organisations become overwhelmed by the plethora of information. This can reduce productivity and performance, hinder learning and innovation, affect decision making and well-being and cost organisations large amounts of money. This paper develops a new theory-based model of factors affecting information overload and provides a formula for calculating the extent of overload, potentially of use as a diagnostic tool supporting individual or organisational development.  相似文献   
54.
The purpose of this research is to analyse empirically how the use of Internet at the various stages of e-procurement impacts the organisational structure of the buying centre in terms of size and composition for a capital good. In this high-risk situation organisational buyers typically undertake extensive, deliberate choice processes involving numerous sequential phases. Interdepartmental coordination is required to specify, amongst others, the most suitable type of equipment in terms of capability, maintainability or costs. Information and communication technologies have changed the way we interact and communicate at different levels, amongst individuals within a single organisation as well as amongst different organisations (for example, with suppliers). A survey was performed using a questionnaire sent to a sample of industrial firms from different sectors. Results show that the size and composition of the buying centre varies at the different stages of the e-procurement process and that the use of Internet leads to an increase in the number of functional areas that intervene in the buying centre. The aims and implications for managers and researchers are discussed.  相似文献   
55.
As shared services organizations (SSO) become more popular as a service management and delivery option in government, properly defining and setting up the governance structure continues to be a key success factor. This paper explores the options and issues to consider when selecting and implementing shared services governance including topics such as oversight, accountability, culture, management of resources, and of day-to-day operations. Shared services organizations are increasingly common in private sector companies and the particular challenges involved in the governance of an SSO in a public service context are highlighted and discussed.  相似文献   
56.
In the United States, a number of federal laws establish requirements that electronic government (e-government) information and services be accessible to individuals with disabilities. These laws affect e-government Web sites at the federal, state, and local levels. To this point, research about the accessibility of e-government Web sites has tended to focus on compliance with Section 508 of the Rehabilitation Act. Though Section 508 has the most specific guidelines regarding Web site accessibility, it is hardly the only law establishing accessibility requirements for e-government Web sites, and Section 508 does not apply to many sites that may be required to be accessible by other laws. Until assessment of the accessibility of e-government Web sites accounts for all of the relevant laws, the understanding of levels of accessibility and compliance will be incomplete. This article examines the entire spectrum of federal laws that create legal requirements for accessible e-government Web sites, analyzing the accessibility requirements that the laws establish and the ways in which each of the laws applies to an e-government Web site. This article also suggests research areas that should be included in future assessments to address the entire range of laws related to the accessibility of e-government Web sites. The issues raised in this article have significant relevance to the design and development of e-government, to the assessment of e-government information and services, and to the inclusion in e-government of the 54 million individuals in the United States with disabilities.  相似文献   
57.
This paper introduces the special issue by explaining the context of the conference at which the papers were originally presented, suggesting some ways of thinking about the intersection of philosophy and museums, and briefly introducing each paper in the collection. In the main body of the paper I look at a recent trend in museum interpretation and argue that it can be understood in terms of a definition of the museum as a space of representation and space of difference. I go on to suggest that this definition allows us to think of the museum as liberating us from certain ways of thinking. The paper as a whole suggests that philosophy can help us to think about museums, and that museums can contribute to philosophical thinking.  相似文献   
58.
This paper starts by outlining the technologies involved in RFIDs and reviews the issues raised by their general application. It then identifies their potential application areas within the library sector based on a generic process view of library activities. Finally it highlights the issues that are raised by their application in libraries and provides an assessment of which of these issues are likely to raise ethical concerns for library professionals. The purpose is to provide an overview of the technology within the context of the library process and to highlight issues which may raise ethical concerns for the profession. A second paper will focus specifically on these concerns within the context of the professional obligations of the librarian.  相似文献   
59.
As a first attempt to empirically investigate the scope of external information-seeking under uncertainty, this paper examines the direct and interactive effects of task uncertainty on the scope of external information-seeking. Search depth and breadth are the two components of the scope of external information-seeking in defining an individual's external information search strategy. The empirical results show that at the source portfolio level, task uncertainty exhibits positive effects on both the depth and breadth of external information-seeking. It is also found that there is a positive relationship between task uncertainty and depth-first propensity, which is defined as a seeker's propensity to acquire information through increasing search depth instead of through widening search breadth at the source portfolio level. Furthermore, the results show that the positive relationship between task uncertainty and depth-first propensity in external information-seeking is stronger when perceived source accessibility is low than when it is high. This study makes a contribution to the information-seeking literature by helping us understand how task uncertainty and source characteristics shape an individual's external information-seeking at the level of source portfolio and providing evidence of the task-source fit perspective in explaining information-seeking behaviour under uncertainty at the source portfolio level.  相似文献   
60.
Using push-pull-mooring framework and investment model as theoretical lenses, this study provides a compelling theoretical model that helps understand the important antecedents of career commitment of IT professionals. Especially, we examined the moderating role of IT career tenure. Data to test the hypotheses were drawn from a cross-sectional field study of MIS departments from top-1000 large-scale companies in Taiwan. The results generally supported the research model. Career satisfaction was the most important determinant of career commitment, followed by professional self-efficacy, threat of professional obsolescence and career investment. The moderating analysis revealed distinct patterns that IT professionals seemed to hold different attitudes about the careers at different stages. The career attitudes of senior IT professionals were largely driven by push factors. On the contrary, the expelling forces which driving people away from their current careers (push effects) and personal inhibitors and facilitators (mooring effects) seemed equally important to junior IT professionals on their attitudes toward committing to the IT career. Insight and implications on management strategy for IT/HR managers are discussed.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号