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基于AHP的软件项目风险投资决策模型研究 总被引：3，自引：0，他引：3
通过对影响软件项目风险投资主要因素分析,构建包含软件项目特征和风险投资特征的项目风险投资评价指标体系,建立基于AHP的软件项目风险投资方案择优模型,旨在为软件项目风险投资决策提供参考依据,减少风险投资决策失误. 相似文献
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自1999年国家设立科技型中小企业技术创新基金以来,在支持中小企业创新和吸引投资等方面发挥了重要作用,通过对创新基金项目后评价可揭示创新基金的中长期影响。以福建省2001—2008年立项的科技型中小企业技术创新项目调查数据为基础,基于创新基金宗旨和目的,从技术创新项目本身成效和促进企业创新发展两个方面进行评价,构建以项目成效、企业创新和企业成长为一级指标的绩效评价体系,运用AHP方法进行项目后绩效评价,比较分析不同年份项目验收后的绩效情况,并采用AHP/DEA模型分析了各年份创新基金相对效率水平。研究表明,创新基金的项目本身取得了良好效益,但长期看项目效益随时间减弱,同时对企业的中长期科技创新和成长发挥了积极作用。 相似文献
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目的 探讨基于AHP综合评价法判断利培酮、阿立哌唑和氯氮平治疗精神分裂症疗效的方法.方法 将判断药物疗效的相关因素归纳为6个因素,9个水平并建立评价指标体系,收集评价指标的原始值,确定与各项评价指标相对应的权重系数,建立线性加权综合法模型,利用AHP计算各系统的综合评价值.结果 三类药物综合评价值得到,阿立哌唑＞利培酮＞氯氮平.结论 研究建立了药物疗效评判模型,并对研究药物进行定量分析,避免单因素判断药物疗效,而使药物疗效的判断更加客观,合理,全面.基于AHP综合评价法对抗精神疾病药物疗效的定量分析,为综合评价法在药物治疗的评判中提供了有利的算法支持,为后面的研究工作提供了有效依据. 相似文献
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分析传统项目周期计算方法的局限性,提出一个基于设计结构矩阵(DSM)的项目进度计划模型。模型中充分考虑了任务的搭接关系对项目进度的影响。通过实例说明了该模型可以有效地缩短项目周期,为项目进度管理提供了新的思路。 相似文献
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高新技术项目风险投资评价探讨 总被引：1，自引：1，他引：0
基于国内外风险投资项目评价研究及实践的总结分析和调研结果,提出一个由风险企业家、风险企业自身和外界市场环境因素三大要素所构成的风险投资项目评价指标体系和评价标准,设计构建一个具体的层次分析(AHP)评价模型,并通过实际案例进行验证。 相似文献
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建立较为完整的航天项目进度风险评价体系,该体系由5个方面,21个元素,89个指标构成,涉及航天项目的设计、生产、测试等诸多过程;利用基于模糊一致矩阵的模糊层次分析法(FAHP)建立算法模型,将结果的一致性检验与修正过程整合为非线性规划问题,并通过粒子群算法(PSO)进行优化求解,得到满足一致性要求的权重结果,并根据结果排序识别出航天项目进度管理中的重要工序,提高事前管理的效率,以便更好地进行工程项目进度管理。最后以载人航天工程X项目为例,证明该方法的合理性与可行性。 相似文献
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计量支付是在公路工程实施阶段资金控制的核心,是项目管理中质量、投资、进度三大目标控制中的重要内容之一,关系着发包人和承包人的切身经济利益。通过对承包人完成的工程项目进行合理地计量并及时支付,不仅是控制项目投资支出的关键环节,同时也是约束承包人履行合同义务,强化承包人合同意识的手段,保证了承包人的资金周转,避免发包人资金失控;同时通过计量支付中计划进度与实际进度的对比可以及时地掌握工程进展情况,分析出计划进度与实际进度的偏差发生在哪些方面,以便分析原因及时采取纠偏措施,实现工程项目进度目标的控制。 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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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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《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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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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《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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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
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Milton Mueller 《The Information Society》2001,17(3):151-163
Long-standing conflict between domain name registrants and trademark holders prompted the Internet Corporation for Assigned Names and Numbers (ICANN) to create a global, mandatory arbitration procedure known as the Uniform Dispute Resolution Policy (UDRP). The UDRP has been used in 2166 cases involving 3938 domain names as of 1 November 2000. The policy gives the initiator of a complaint, generally a trademark holder, the right to choose which ICANN-accredited dispute resolution service provider (RSP) will handle the case. During the preparation of the UDRP,some feared that complainant selection would lead to "forum shopping" that might bias the results. This article performs a statistical assessment of the forum-shopping thesis and finds support for it. There are statistically significant differences in the various RSPs' propensity to take away names from defendants; there are also major differences in the number of cases brought to each RSP. RSPs who take away names have the larger share of cases. The study examines other variables that might explain differences in market share, such as price, the plaintiff's nationality, or the time taken to decide a case. It finds that nationality and time also are correlated with market share. The study concludes that shopping for a favorable outcome is an important factor in the UDRP. 相似文献
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Prof. Raymond C.K. Chen a neuropsychologist with the CAS Institute of Psychology has made novel progress in his studies of schizophrenia. His work has been reported by a recent issue of Behavioural Neurology.…… 《中国科学院院刊(英文版)》2008,22(1):15-15
Prof. Raymond C.K. Chen, a neuropsychologist with the CAS Institute of Psychology, has made novel progress in his studies of schizophrenia. His work has been reported by a recent issue of Behavioural Neurology. 相似文献
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Leah A. Lievrouw 《The Information Society》1998,14(2):83-96
The main premise of this article is that in information societies generally, and in virtual social contexts particularly, a distinctive style of interaction to facilitate the communication of difference, heterotopic communication , has emerged. It rests on two cultural foundations: an ideological belief in the positive, socially integrating power of communication, and a prevailing ethic of instrumental rationality, subjective individualism, and strategically practiced self-interest. The former is demonstrated by the use of simulation and spectacle as sources of information; exhibitionism/voyeurism as a communicative style; and the awareness of surveillance. The latter is seen in the competitive use of knowledge as a commodity; a surface globalism masking deep parochialism; lateral as well as vertical information inequity; and the use of public versus private as strategies for engagement rather than as spaces. Those who engage in heterotopic communication resort to their 'own devices' both in the sense of personal agendas, strategies, interests, and interpretations, and in the form of the telecommunication tools that help realize them. These personal and technological devices allow individuals with the right educational and technical resources to avoid exposure to disagreement, difference, or other information that does not serve their direct purposes or reflect their particular views of the world; yet they also help convey the appearance of openness, availability, and cooperation. This style of interaction is used strategically in combination with information and communication technologies to gain social or economic advantages, but it may encourage social separatism and parochialism, inhibit the negotiation of disputes, and emphasize competing interests. 相似文献