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目的:对电子商务网站流量的各类指标进行逐级评价。方法:使用了变异系数法求取权重值,使用了模糊理论中的模糊综合评价方法进行评价。结果:构建了电子商务网站流量的综合评价模型,并对实例进行评价分析。结论:实例分析和结果表明,建立的电子商务网站流量的综合评价模型能够提供客观正确的评价结果。流量指标中的流量数量,流量质量,流量来源,流量转化对于现今的电子商务网站运营仍然具有很大相关性。 相似文献
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本文分析了我国制造业电子商务网站现状及其评价的作用和类型，对制造业电子商务网站评价的方法进行了评述，比较了中外制造业电子商务网站评价的异同，并提出一套相对完整的制造业电子商务网站评价的内容和指标体系。 相似文献
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电子商务网站评估方法与应用研究 总被引：1，自引：0，他引：1
参考电子商务网站评价的相关研究,运用专家打分法（Delphi法）,确定网站的评价指标体系及相应的指标权重,然后运用模糊综合评价的方法,提出电子商务网站评估的步骤和方法,最后以全球著名的B2C网站亚马逊为例进行了应用研究,研究结果表明运用专家打分法和模糊综合评价法是评估网站的一种行之有效的方法。 相似文献
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电子商务网站评价研究与应用分析 总被引：37，自引：2，他引：37
本文分析、概括了电子商务网站评价的作用和类型，对电子商务网站评价的方法、内容与指标体系进行了评述，并指出了我国电子商务网站评价研究和应用的不足之处和发展方向。 相似文献
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电子商务网站评价的指标体系与模型研究 总被引：1，自引：0，他引：1
当今的电子商务类网站多种多样，对网站的评价也具有越来越重要的意义。通过对电子商务网站评价指标体系与评价模型的建立，提供了一种操作性较强的网站评价方法。 相似文献
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电子商务网站可信度评价模型 总被引：2，自引：0，他引：2
基于第三方认证机构的视角，构建了电子商务网站的信用评价指标体系及评价因素集，并建立灰色关联信用评估模型，以图对电子商务网站信用的综合评估提供一个方法。 相似文献
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企业电子商务网站评价研究 总被引：8，自引：1，他引：7
网站评价是了解网站价值、比较网站优劣、指导网站建设的重要依据和手段,它随着越来越多企业开始使用网站进行电子商务活动逐渐成为研究的热点.本文使用内容分析法对国内外文献进行了研究,总结了前人评价企业电子商务网站的关键指标,分析了国内外研究的异同. 相似文献
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基于因子分析和对应分析的电子商务网站评价 总被引：3，自引：0，他引：3
电子商务网站作为同用户直接交互的平台,在电子商务环境中处于关键地位。为了实现对电子商务网站的客观评价,本文利用实时监测工具,采用因子分析和对应分析两种方法对72家国内电子商务网站进行评价。在评价结果分析的基础上,对各电子商务网站提出建议,以提高网站建设质量。 相似文献
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电子商务网站评价的指标体系与模型研究 总被引：2，自引：0，他引：2
当今的电子商务类网站多种多样,对网站的评价也具有越来越重要的意义。通过对电子商务网站评价指标体系与评价模型的建立,提供了一种操作性较强的网站评价方法。 相似文献
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A research group led by Prof. ZHAI Qiwei from the Institute for Nutritional Sciences under the CAS Shanghai Institutes for Biological Sciences has discovered that even relatively low doses of resveratrol-a chemical found in the skins of red grapes in red wine-can improve the sensitivity of mice to the hormone insulin according to a report in the October issue of Cell Metabolism.…… 《中国科学院院刊(英文版)》2008,22(1):14-15
Aresearch group led by Prof. ZHAI Qiwei from the Institute for Nutritional Sciences under the CAS Shanghai Institutes for Biological Sciences has discovered that even relatively low doses of resveratrol--a chemical found in the skins of red grapes and in red wine--can improve the sensitivity of mice to the hormone insulin, according to a report in the October,2007 issue of Cell Metabolism. As insulin resistance is often characterized as the most critical factor contributing to the development of Type 2 diabetes, the findings“provide a potential new therapeutic approach for preventing or treating” both conditions, the researchers said. 相似文献
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《中国科学院院刊(英文版)》2008,22(1):2-3
CAS should stick to the principle of rendering service to, and giving impetus for, the development of China＇s science enterprise by making S＆T innovations, said CAS President LU Yongxiang. The CAS president made the remarks in a recent talk to communicate the gist of the winter session of the Party＇s Leading-member Group at CAS, which was held from 7 to 11 January in Beijing. 相似文献
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Marjorie Armstrong-Stassen Margaret Landstrom Ramona Lumpkin 《The Information Society》1998,14(2):153-164
This study examined how students who had no prior experience with videoconferencing would react to the use of videoconferencing as an instructional medium. Students enrolled in seven different courses completed a questionnaire at the beginning of the semester and again at the end of the semester. Students at the origination and remote sites did not differ in their reactions toward videoconferencing but there was a significant difference for gender. Women reacted less favorably to videoconferencing. Compared to the beginning of the semester, students reported significantly less positive attitudes toward taking a course through videoconferencing at the end of the semester. There were no significant differences in students' attitudes toward videoconferencing across courses at the beginning of the semester but there were significant differences across the courses at the end of the semester. The results suggest the need for better preparation for both students and instructors. 相似文献
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《中国科学院院刊(英文版)》2008,22(1)
With great care, Dr. ZHOU Zhonghe takes out a package wrapped by cotton tissue from a drawer and says: "This is the gem of our collections: the fossil of a bird that lived 125 million years ago!" Then, pointing at a tiny mound, he explains: "Look, this is the claw and that is the head. It was in the egg shell and ready to hatch ... The species fell into a family of waterside inhabitants." 相似文献
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A joint study by Prof. ZHANG Zhibin from the CAS Institute of Zoology his co-workers from Norway US Swiss have indicated that historical outbreaks of migratory locusts in China were associated with cold spells suggesting that China's projected climate warming could decrease the pest's numbers. The study was published in Proceedings of the National Academy of Sciences on September .…… 《中国科学院院刊(英文版)》2008,22(1):6-7
Ajoint study by Prof. ZHANG Zhibin from the CAS Institute of Zoology and his co-workers from Norway, US and Swiss have indicated that historical outbreaks of migratory locusts in China were associated with cold spells, suggesting that China＇s projected climate warming could decrease the pest＇s numbers. The study was published in Proceedings of theNational Academy of Sciences on 17 September, 2007. 相似文献
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Caroline Haythornthwaite 《The Information Society》2001,17(3):211-226
A computer-mediated group is a complex entity whose members exchange many types of information via multiple means of communication in pursuit of goals specific to their environment. Over time, they coordinate technical features of media with locally enacted use to achieve a viable working arrangement. To explore this complex interaction, a case study is presented of the social networks of interactions and media use among members of a class of computer-supported distance learners. Results show how group structures associated with project teams dominated who communicated with whom, about what, and via which media over the term, and how media came to occupy their own communication niches: Webboard for diffuse class-wide communication; Internet Relay Chat more to named others but still for general communication across the class; and e-mail primarily for intrateam communication. Face-to-face interaction, occurring only during a short on-campus session, appears to have had a catalytic effect on social and emotional exchanges. Results suggest the need to structure exchanges to balance class-wide sharing of ideas with subgroup interactions that facilitate project completion, and to provide media that support these two modes of interaction. 相似文献
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Active biological molecules functional structures can be fabricated into a bio-mimetic system by using molecular assembly method. Such materials can be used for the drug delivery disease diagnosis therapy new nanodevice construction.…… 《中国科学院院刊(英文版)》2008,22(1):22-22
Active biological molecules and functional structures can be fabricated into a bio-mimetic system by using molecular assembly method. Such materials can be used for the drug delivery, disease diagnosis and therapy, and new nanodevice construction. 相似文献
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Electronic data interchange (EDI) provides means for interorganizational communication, creates network externalities, requires an advanced information technology (IT) infrastructure, and relies on standards. In the diffusion of such innovations, institutional involvement is imperative. Such institutions contain governmental agencies, national and global standardization organizations, local government, and nonprofit private organizations like industry associations. The last type of organizations we call intermediating institutions. They intermediate or coordinate ("inscribe") the activities of a group of would-be adopters. Unfortunately, little is known of how these organizations shape the EDI diffusion trajectory. In this article we examine one specific type of intermediating organizations?industry associations?and how they advanced the EDI diffusion process in the grocery sectors of Hong Kong, Denmark and Finland. We identify six institutional measures, placed into a matrix formed by the mode of involvement (influence vs. regulation) and the type of diffusion force (supply push vs. demand pull), that can be mobilized to further the EDI diffusion. Industry associations were found to be active users of all these measures to varying degrees. Their role was critical especially in knowledge building, knowledge deployment, and standard setting. Furthermore, institutional involvement varied due to policy and cultural contingencies and power dependencies. 相似文献
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Leah A. Lievrouw 《The Information Society》2000,16(2):155-159
This essay focuses on universal service and the Internet as means to support social and political participation. The emphasis on access to telecommunications systems in conventional approaches to universal service is contrasted with access to content. A model of the information environment is described that accounts for the roles of content and conduit, both of which are necessary conditions to achieve true access. A method is outlined for employing information indicators to observe or measure the information environment. 相似文献
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Puay Tang 《The Information Society》1998,14(1):19-31
The increasing prospects of digital piracy has prompted the perceived need by electronic publishers to adopt technical systems of protection, and governments to reform their copyright laws. This article is a preliminary study of the management of intellectual property by electronic publishers, defined as those involved in the production of online databases, and CD-ROMs. It focuses on three main issues: (1) how electronic publishers view the increasing threat of piracy; (2) the methods of protection employed to protect intellectual property in digital format; and (3) the importance of technological protection of intellectual property in electronic publications. The analysis is based on a sample of 23 UK electronic publishers. The interviews revealed an interesting assortment of protection methods and did not show that technological protection was a preferred way. Instead, the means of protection, in addition to copyright law, comprised niche markets, pricing, trust, bad publicity, and nontechnical and technical means. 相似文献