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高校图书馆读者满意度的群决策方法 总被引：1，自引：0，他引：1
高校图书馆读者满意度的测评,其评价体系的指标权重具有重要的作用。根据实用性和灵活性的原则,让专家根据个人的偏好,从4种形式的偏好信息:序关系值、效用值、互反判断矩阵、模糊互补判断矩阵中有选择地进行决策,然后用OWG算子将各个专家的偏好信息集结为群的偏好,再在模糊"多数"意义下,按照指标的重要程度确定出指标的权重。并根据读者问卷调查的结果进行满意度综合测评。最后用一个算例说明该方法的可行性和实用性。 相似文献
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研究基于多个决策时段且具有互反判断矩阵和互补判断矩阵两类不同形式偏好信息的群决策问题.根据原始判断矩阵,建立了直接集结偏好信息的最优化模型;通过分析决策者给出的偏好信息,给出了确定决策者客观权重的方法,并将客观权重与主观权重相结合得到决策者的综合权重.由于无需事先将不同类型的偏好信息转化为同一形式,因此,所提出的多时段多元判断偏好信息的集结方法较为简单易行,而且可以避免形式转化过程中信息的丢失和扭曲. 相似文献
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研究基于多个决策时段且具有互反判断矩阵和互补判断矩阵两类不同形式偏好信息的群决策问题。根据原始判断矩阵,建立了直接集结偏好信息的最优化模型;通过分析决策者给出的偏好信息,给出了确定决策者客观权重的方法,并将客观权重与主观权重相结合得到决策者的综合权重。由于无需事先将不同类型的偏好信息转化为同一形式,因此,所提出的多时段多元判断偏好信息的集结方法较为简单易行,而且可以避免形式转化过程中信息的丢失和扭曲。 相似文献
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讨论了属性有偏好的梯形模糊数型多属性决策问题针对决策者对属性的偏好信息以梯形模糊数互补判断矩阵形式给出,属性值以梯形模糊数形式给出的情形,首先根据互补判断矩阵的权重计算公式确定各属性的权重;然后利用TOPSIS方法求得各方案与模糊理想解的相对贴近度,根据相对贴近度的大小对方案进行排序;最后通过算例验证了该方法的可行性和有效性． 相似文献
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研究了模糊互补判断矩阵基于一致性的灵敏度分析.首先,得出灵敏度决策区域;然后,将导出权重计算公武的序传递性和一致性检验的公式相结合,得到了原矩阵元素在一定范围变化时,模糊互补判断矩阵一致性一些相关结论.得出了一个既能使原始矩阵决策方案保持排序不变或者最优方案不变,又能使矩阵元素发生变化后仍符合满意一致性的决策区域.最后给出了综合决策区域分析的一个例子. 相似文献
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反竞争情报是当前企业的一项重要职能工作,对企业保持核心竞争力具有重要意义。构建了包括主体组织策略性、情报防御保护能力和主动反竞争情报能力三个准则12项指标的企业反竞争情报能力的评价指标体系;基于区间数互补判断矩阵,给出其一致性检验和指标赋权的具体步骤,继而构建了企业反竞争情报能力的模糊综合评价模型;最后给出应用实例。 相似文献
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选聘优秀管理人员的不确定语言决策模型 总被引：1，自引：0，他引：1
针对如何选聘管理人员的决策问题,提出了一种基于不确定语言信息处理的决策模型.首先引入不确定语言变量的运算法则以及不确定语言变量之间比较的可能度公式,给出了不确定语言变量间距离的概念,针对属性权重信息不完全的情形并基于方差最大化的思想给出了一个求解权重的线性规划模型;然后利用不确定语言加权平均(ULWA)算子,对不确定语言决策信息进行加权集成,并利用可能度公式构造可能度矩阵(互补判断矩阵),继而利用互补判断矩阵排序公式对决策方案进行排序和择优;最后进行了实例分析. 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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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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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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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