中国索引之乡刍议     

平保兴 《图书馆杂志》2011,(12):17-20

论述了西方传教士在上海编纂的索引、上海教会大学培养的人才、上海最早建立的索引委员会、上海是民国时期索引检字法发生和论争中心和这一时期上海出版索引的出版社等,指出,上海是中国现代索引重要的发祥地。  相似文献   

两岸三地主要沿海港口动态效率评价——基于DEA-Malmquist全要素生产率指数   总被引：3，自引：1，他引：2  

李兰冰  刘军  李春辉 《软科学》2011,25(5):80-84

以DEA-Malmquist全要素生产率指数为理论工具,对两岸三地主要沿海港口的动态效率予以评价,考量各地港口的竞争地位和竞争态势。研究发现:(1)港口总体绩效不佳,且呈逐年恶化趋势,可能是受金融危机影响;(2)规模无效率是港口绩效不佳的根源,可能是港口资源分散造成的;(3)香港地区港口竞争力最强,台湾地区最弱,大陆居中;(4)大陆地区,长三角港口竞争力最强,其次为环渤海、福建及珠三角;(5)据吞吐量-效率矩阵,两岸三地港口可划分为精干、强壮、肥胖和瘦弱四种类型;(6)台湾地区全要素生产率趋于下降,效率恶化和技术退步是其双重成因;大陆趋于优化,主要得益于技术进步;香港地区先提升、后停滞,但仍呈现一定技术进步特征。  相似文献   

Collaborative management of business metadata     

Kai M. Hüner^{Author Vitae}  Boris Otto Author VitaeHubert Österle Author Vitae 《International Journal of Information Management》2011,31(4):366-373

Legal provisions, cross-company data exchange and intra-company reporting or planning procedures require comprehensively, timely, unambiguously and understandably specified business objects (e.g. materials, customers, and suppliers). On the one hand, this business metadata has to cover miscellaneous regional peculiarities in order to enable business activities anywhere in the world. On the other hand, data structures need to be standardized throughout the entire company in order to be able to perform global spend analysis, for example. In addition, business objects should adapt to new market conditions or regulatory requirements as quickly and consistently as possible. Centrally organized corporate metadata managers (e.g. within a central IT department) are hardly able to meet all these demands. They should be supported by key users from several business divisions and regions, who contribute expert knowledge. However, despite the advantages regarding high metadata quality on a corporate level, a collaborative metadata management approach of this kind has to ensure low effort for knowledge contributors as in most cases these regional or divisional experts do not benefit from metadata quality themselves. Therefore, the paper at hand identifies requirements to be met by a business metadata repository, which is a tool that can effectively support collaborative management of business metadata. In addition, the paper presents the results of an evaluation of these requirements with business experts from various companies and of scenario tests with a wiki-based prototype at the company Bayer CropScience AG. The evaluation shows two things: First, collaboration is a success factor when it comes to establishing effective business metadata management and integrating metadata with enterprise systems, and second, semantic wikis are well suited to realizing business metadata repositories.  相似文献   

浙江省人才集聚度对贡献率的影响机制     

谢牧人  于斌斌 《未来与发展》2011,(7):113-116

以浙江省相关统计资料为依据,实证研究了典型行业的人才集聚度对贡献率的影响程度。实证结果表明：人才集聚程度越显著,对产业的贡献率就越高;人才集聚的子效应对产业贡献率的影响存在明显差异,尤其是人才集聚的规模效应对于产业贡献率的影响最为明显。因此,构建人才的引进机制、培养机制和环境机制对提升人才对产业发展的贡献率尤为重要。  相似文献   

The semantic mapping of words and co-words in contexts     

Loet Leydesdorff  Kasper Welbers 《Journal of Informetrics》2011,5(3):469-475

Meaning can be generated when information is related at a systemic level. Such a system can be an observer, but also a discourse, for example, operationalized as a set of documents. The measurement of semantics as similarity in patterns (correlations) and latent variables (factor analysis) has been enhanced by computer techniques and the use of statistics; for example, in “latent semantic analysis”. This communication provides an introduction, an example, pointers to relevant software, and summarizes the choices that can be made by the analyst. Visualization (“semantic mapping”) is thus made more accessible.  相似文献   

石化工程项目可持续发展综合评价     

白志奇  蔡建国 《科技广场》2011,(2):103-105

为全面、客观、公正的评价石化工程项目可持续发展能力,促进可持续发展战略的实施,在投资决策阶段,提出了石化工程项目可持续发展的内涵,并从社会、经济、生态、管理等四个方面构建了评价指标体系。在对现有可持续发展评价方法分析的基础上,提出了一种新的基于可拓理论的可持续发展评价方法,给出了石化工程项目可持续发展可拓综合评价的计算方法,并将该方法应用于实际石化工程。结果表明该方法具有一定的理论价值和实践可操作性。  相似文献   

新农村可持续发展水平评价研究——以典型区域为例     

陈润羊 《科学．经济．社会》2011,29(2):11-16

在综述了可持续发展评价领域研究现状的基础上,采取统计分析、实地调查和系统分析相结合的方法,以甘肃省天水市、辽宁省锦州市、浙江省温州市、江西省赣州市和江西省抚州市等4个典型区域、5个典型类型为研究对象,进行了新农村可持续发展水平评价研究,为协调新农村建设提供科学依据。构建了一套4级叠加,逐层递归的新农村可持续发展水平评价指标体系。指标体系由生产发展、生活保障、环境友好和社会文明4个系统、18项指标构成。采用多目标线性加权函数法,建立了评价模型,并对5个典型类型进行了实证研究。结果表明：2006年的新农村建设初始年,只有温州是高度可持续发展水平,锦州为一般可持续发展水平,赣州、抚州和天水尚处于新农村建设的低级可持续发展水平。  相似文献   

“第二课堂”活动与大学英语听说教学——基于独立学院英语教学现状的分析     

李雪峰  胡桦  张苹 《科教文汇》2011,(31):114-115,202

本文对独立学院大学英语听说教学现状进行了深入分析,强调了听说教学的重要意义,提出应该在把握好课堂教学质量的同时,开展英语＂第二课堂＂活动,增强学生自信心和自主学习意识,提高英语学习的参与性和互动性。在建构主义核心理论和二语习得有关理论基础上,作者从独立学院角度着重分析了＂第二课堂＂活动对大学生听说能力培养的有效性,并论述了建设第二课堂的必要性和可行性。  相似文献   

Tokenized index funds: A blockchain-based concept and a multidisciplinary research framework     

《International Journal of Information Management》2021

In response to the bleak prospects of today’s financial markets, a wave of financial and technological innovations emerges, bringing about potential benefits but also new challenges. For instance, tokenized securities are a new kind of blockchain-based asset enabling price stability, programmability, pseudonymity, and transaction efficiency, while also introducing new regulatory challenges and uncertainties. Conversely, index funds are an established investment device enabling broad diversification in a cost-effective, tax-efficient, and transparent way, while potentially also contributing to concentration of market power, intermediation cost, access barriers for underbanked or impoverished investors, increased market volatility, and human behavioral challenges. This paper conceptually develops Tokenized Index Funds as a hybrid approach that combines the benefits of tokenized securities and index funds while alleviating some of their drawbacks. Based thereupon, a corresponding multidisciplinary research framework is presented, with sample research questions along the activities of design and features, business and economics, management and organization, and law and regulation.  相似文献   

功能视域下的新疆高校少数民族汉语教学研究     

尹桂丽 《喀什师范学院学报》2014,(5):99-102

归纳介绍了功能语法理论的语言观及核心内容,对新疆高校少数民族汉语的语言教学现状进行了理论分析,并从功能语义体系的角度提出了教学改革的路径。功能语法理论打破传统语法孤立地分析句子的做法,侧重于意义在不同层面如何表达。意义网络的构建对提高第二语言学习者的语言交际能力具有重要价值。  相似文献