共查询到20条相似文献，搜索用时 78 毫秒
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文献信息服务量化的数学模型及其评价 总被引：3，自引：0，他引：3
通过对文献信息服务的量化，并以抽象的理想化的简化信息场模型为基础，以科学性、和谐性、简明性、可操作性为原则，抓住事物的主要矛盾和本质特征，这样便可更加清晰地揭示文献信息在传递过程中的基本规律。…… 相似文献
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基于AHP分析法的中小学教师信息素养评价标准的量化 总被引：3，自引：0，他引：3
为了增强信息素养概念的可信度和提高中小学教师信息素养评价的准确性，笔者使用AHP（Analytical Hierarchy Process，又称层次分析法），对中小学教师信息素养评价标准进行了量化分析。 相似文献
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[目的/意义]旨在提出控制政府网站信息服务交互质量的有效方法.[方法/过程]运用文献分析法和访谈法构建政府网站信息服务交互性公众体验量化指标,运用实验方法修正该指标体系.[结果/结论]修正了政府网站信息服务交互性公众体验量化的环境体验、网站体验和人际交互体验三个维度以及27个指标,为后续政府网站信息服务交互质量控制奠定... 相似文献
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基于贝叶斯网络的脆弱性状态评估方法 总被引：1，自引：0，他引：1
对网络安全性的量化评估问题是目前网络安全领域的研究热点之一。通过对现有的网络安全模型及量化分析方法的研究和比较,针对影响网络安全性的各项因素的全面脆弱性评估,提出了网络可靠度、脆弱点关键度、脆弱性状态图最低阶最小路集和最低阶最小割集4个具体的评估指标,将基于贝叶斯网络的计算方法引入脆弱性评估中,提出了量化评估计算方法。在此基础上构建了网络实例,使用SPIN验证工具对网络攻击进行模拟并对提出的评估指标及算法进行了分析验证。实验结果表明,文中提出的算法和评估指标集能够正确地量化反映网络的安全状态。 相似文献
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对数字热成像的噪点信息矢量量化是实现图像去噪,提高图像识别能力的关键技术。传统方法中对数字热成像中噪点信息矢量量化算法采用LBG算法,当图像出现灰色关联度噪点时,量化算法的抗噪性能不好。提出一种基于强边缘保留和误差补偿编码的数字热成像中噪点信息矢量量化算法。用量化误差补偿法对量化的热成像进行补偿,消除当前图像块的瑕疵特征点,提高误差补偿编码处理精度。仿真表明,本算法对数字热成像噪点信息的矢量量化效果较好,去噪性能优越,进行矢量量化处理后,实现噪点去除,PSNR值较传统方法都有明显提高,提高对图像目标的识别性能,较传统方法优越。 相似文献
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高等学校科技工作量化模型 总被引：2，自引：0，他引：2
根据从事科学研究活动的过程和结果，对错综复杂的科学研究进行了科学分类，进而给出能科学、全面反映研究活动的分类量化指标。利用专家打分综合证券法及统计几何平均值法，给出指标权重值及量化指标的标准工作量值SWV（Standard Work Value），建立科技工作量化模型。 相似文献
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在网络时代，信息服务更多的要通过网络进行，而传统信息服务的服务质量的评估依赖于几个固定的模型，对网络信息服务质量的评估需要从另一个角度用新的方法进行。本文引入网络和通信领域的理念，提出了影响网络信息服务的几点因素，对网络环境下的信息服务质量评估提出了一些意见。 相似文献
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人力资源是制约现代企业发随着现代计算机技术和网络技术的发展,建立量化模型进行量化管理是学科发展的一个必然的趋势.本文在仔细分析人力资源特征的基础上提出一系列量化参数,尝试对人力资源的使用过程建立量化模型,以实现对人力资源进行更科学、合理、快速地管理,利用这种方法便于对人力资源的使用过程进行动态追踪. 相似文献
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知识经济时代,知识要素在国家创新系统建设及创新生态系统优化过程中的核心地位日益得到实践验证。从创新网络的知识共享博弈过程入手,从关系联结强度、关系质量、关系稳定性等多个维度重点探析关系嵌入对知识共享的协调作用,并提出创新网络知识共享的法律协调、管理协调和社会协调机制,以提高企业间知识资源的转移与创新开发效率,为国家创新系统建设及创新生态系统的优化提供思路与建议。 相似文献
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关于国家创新系统演变的经济学思考 总被引：1，自引：0，他引：1
上世纪90年代以来,国家创新系统(NIS)作为分析国家层面技术创新的框架,受到了国际学术界的普遍关注。然而迄今为止,学术界对国家创新系统的认识还存在较多争议,尤其是对发展中国家创新系统的研究还很不完善。本文试图从经济学的视角来解释国家创新系统演变的内在机理,以及政府政策和国际环境对于国家创新系统转变的影响。分析发现,影响“创新供给”的因素和影响“创新需求”的因素,都会作用于一国创新系统的变化,最终是一国的科技及经济发展水平决定一国创新系统的特征。 相似文献
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国家创新能力预警信息系统研究 总被引：1，自引：0，他引：1
国家创新能力是一个国家创新水平与潜力的综合体现，也是国家创新系统要解决的核心问题之一。本文在国家创新能力评价指标与方法、预警机制研究基础上，提出了建立国家创新能力预警信息系统的必要性，分析了系统建立的方法、步骤及所要解决的关键问题。 相似文献
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Modeling the relative efficiency of national innovation systems 总被引：2，自引：0，他引：2
Although a large amount of past research has theorized about the character of national innovation systems (NISs), there has been limited process-oriented empirical investigation of this matter, possibly for methodological reasons. In this paper, we first propose a relational network data envelopment analysis (DEA) model for measuring the innovation efficiency of the NIS by decomposing the innovation process into a network with a two-stage innovation production framework, an upstream knowledge production process (KPP) and a downstream knowledge commercialization process (KCP). Although the concept of innovation efficiency is a simplification of the innovation process, it may be a useful tool for guiding policy decisions. We subsequently use a second-step partial least squares regression (PLSR) to examine the effects of policy-based institutional environment on innovation efficiency, considering statistical problems such as multicollinearity, small datasets and a small number of distribution assumptions. The hybrid two-step analytical procedure is used to consider 22 OECD (Organisation for Economic Co-operation and Development) countries. A significant rank difference, which indicates a non-coordinated relationship between upstream R&D (research and development) efficiency and downstream commercialization efficiency, is identified for most countries. The evidence also indicates that the overall innovation efficiency of an NIS is mainly subject to downstream commercial efficiency performance and that improving commercial efficiency should thus be a primary consideration in future innovation policy-making in most OECD countries. Finally, the results obtained using PLSR show that the various factors chosen to represent the embedded policy-based institutional environment have a significant influence on the efficiency performance of the two individual component processes, confirming the impact of public policy interventions undertaken by the government on the innovation performance of NISs. Based on these key findings, some country-specific and process-specific innovation policies have been suggested. 相似文献
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The paper attempts to develop a mathematical model of the national innovation system (NIS) of Taiwan, particularly with regard to its integrated circuit (IC) industry. The method utilised is that of system dynamics (SD). Drawing on both questionnaire/in-depth interviews and computer simulation, the paper aims to increase insights into the dynamic processes of the Taiwanese IC industry system of innovation and understand the interdependence and interaction among capital flows, human resource flows, knowledge and technology flows, and product flows in the NIS. The paper concludes with some simulations of policy alternatives confronting the IC industry and the Taiwanese government. 相似文献
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《国际创新研究学报(英文)》2022,6(3):183-195
This review article covers some of the founding literature that helps develop our understanding of the National Innovation System (NIS) concept. Subsequently, several versions of NIS, including system-functional approaches, are discussed and compared with narrow research and development (R&D) and market-based approaches. Finally, the article contends that the system-functional and other narrow approaches are limited in application to the developing low- and middle-income countries (LMICs). Thus, it makes a case for more inclusive absorptive capacity approaches and explains how they might be more relevant in investigating the NIS of an LMIC. Such approaches suggest LMICs be strategic in building their innovation base and plead for strong local conditions (capacities) to produce knowledge as well as capture and improvise on incoming knowledge from abroad. The research is important as it provides insights into analyzing and capturing innovation processes in LMICs, which are prime candidates for development and innovation studies and practice. 相似文献
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This paper, using Thailand as a case study, aims at understanding the national innovation system (NIS) in developing countries which are less successful in technological catching-up. In contrast to developed countries, the development level of Thailand’s NIS does not link to its economic structural development level. As Thailand moves from agricultural to an increasingly industrial economy, its NIS remains weak and fragmented. The mismatch between the two affected Thailand’s competitiveness and partially contributed to the recent economic crisis. Studies of NIS in countries like Thailand should focus on factors contributing to the long-running perpetuation of weak and fragmented NIS. 相似文献
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国家科技创新体系是由政府、高校和科研院所、企业以及科技中介服务机构组成的复杂系统,政府通过科技创新政策解决系统的市场失灵和系统失灵问题,国家创新体系建设水平在很大程度上取决于科技创新政策体系的协调性。本文首先给出了科技创新政策体系的定义,分析了科技创新政策体系及其协调性的内涵;其次,在讨论了国家科技创新体系的协调性与科技创新政策体系协调性关系的基础上,分别从国家创新体系的科技创新能力的协调性和科技创新活动的协调性两方面分析了国家科技创新体系建设对科技创新政策体系协调性的需求;最后,提出科技创新政策体系协调性内容。 相似文献
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Naubahar Sharif 《Research Policy》2006,35(5):745-766
Adopting a science and technology studies (S&TS) perspective and organized around eight major themes, this paper analyzes the development of the National Innovation Systems (NIS) concept, examining how the formal body of codified NIS knowledge was produced, developed and spread, and how it is used. In order to trace its history, I interviewed major advocates of the NIS concept to understand how and why it has become so widespread in academic and policymaking circles. The eight themes serve as ‘missing pieces’ to explain the early history of the NIS concept. 相似文献