Domain analysis and information retrieval through the construction of heliocentric maps based on ISI-JCR category cocitation     

Flix de Moya-Anegn  Benjamín Vargas-Quesada  Zaida Chinchilla-Rodriguez  Elena Corera-lvarez  Victor Herrero-Solana  Francisco J. Munoz-Fernndez 《Information processing & management》2005,41(6):1520-1533

We propose the use of ISI-JCR categories as units of cocitation and measurement for the construction of heliocentric maps. The use of a spatial metaphor allows us to illustrate, analyze and compare domains in terms of the categories and their interconnections or links. We can also move around within the structure of these domains for further analysis, and access the documents associated to the categories and to the links that cocite or relate them.  相似文献   

论用户信息技术素养教育   总被引：9，自引：0，他引：9  

李光焰 《情报科学》2004,22(4):416-418

本文在分析信息素养涵义的基础上，提出了信息技术素养是用户信息素养前提条件的想法。通过对图书馆进行信息技术素养教育优势的分析，探讨了图书馆开展信息技术素养教育的途径。  相似文献   

信息技术引发的管理变革   总被引：1，自引：0，他引：1  

丁宁  邢兰兰 《中国软科学》2002,(4):98-101

由于信息技术的发展，尤其是计算机能力的不断提高和因特网的兴起，一方面使经济运行中的一些传统理念受到了一定程度的冲击，另一方面所带来的社会经济的变化必然会引发企业管理的改革，企业管理变革所产生的结果是经济增长方式变革以及在新经济中竞争能力的提高。当然，信息技术发展和广泛应用给企业带来的影响是长远的、持久的和深刻的，关于信息技术引发的企业管理变革的研究也是一个持续不断的过程。但是，信息技术和管理科学的结合将是未来企业经营管理过程中的一个必然趋势。本文对信息技术的应用条件下组织结构、过程、供应链的变化进行了探讨，提出了最具柔性的网络组织体系。在过程改造研究中，提出了顾客导向和价值链的分析思维。在供应链分析中，明确提出了在供应链管理中信息流的管理是其管理的核心。从而为企业在信息技术条件下经营企业提供了一定的思路和方法。  相似文献   

网络定题服务质量管理体系架构的研究     

孙书平  张艳英  李冶 《现代情报》2007,27(8):189-191,195

本文对网上定题服务的现状进行了研究,提出了一种能够满足多用户情报需求的、可支持多业务的新一代网上定题服务质量控制和管理体系结构及系统解决方案。给出了一种新的互联网服务质量控制管理体系结构和工作信息流程及提高定题服务质量控制和管理的关键技术。  相似文献   

Automatic ranking of information retrieval systems using data fusion     

Rabia Nuray  Fazli Can 《Information processing & management》2006

Measuring effectiveness of information retrieval (IR) systems is essential for research and development and for monitoring search quality in dynamic environments. In this study, we employ new methods for automatic ranking of retrieval systems. In these methods, we merge the retrieval results of multiple systems using various data fusion algorithms, use the top-ranked documents in the merged result as the “(pseudo) relevant documents,” and employ these documents to evaluate and rank the systems. Experiments using Text REtrieval Conference (TREC) data provide statistically significant strong correlations with human-based assessments of the same systems. We hypothesize that the selection of systems that would return documents different from the majority could eliminate the ordinary systems from data fusion and provide better discrimination among the documents and systems. This could improve the effectiveness of automatic ranking. Based on this intuition, we introduce a new method for the selection of systems to be used for data fusion. For this purpose, we use the bias concept that measures the deviation of a system from the norm or majority and employ the systems with higher bias in the data fusion process. This approach provides even higher correlations with the human-based results. We demonstrate that our approach outperforms the previously proposed automatic ranking methods.  相似文献   

Cross-Sectoral Differences in Intellectual Property Enforcement in Developing Countries: The Role of State-Industry Linkages     

Krishna P. Jayakar 《The Information Society》2003,19(2):155-169

Leading developing countries have recently introduced some reforms in their national intellectual property regimes to harmonize them with international treaties and agreements. However, major differences remain in how these laws are applied to different information industries, and how they are enforced on the ground. While intellectual property law applies to a host of information products ranging from music to computer programs, governments have selectively enforced the law in some information industries, while neglecting to extend the same protection to others. Based on the comparative institutionalist approach, this article identifies two variables--state-industry linkages and level of innovative activity--that may explain the selective enforcement of intellectual property law. Intellectual property rights were expected to be better protected in information industries with strong state-industry linkages and higher levels of domestic innovation. This expectation was tested through a comparative study of four intellectual property industries from the Asian region. The results confirmed the expectation, but also demonstrated that strong state-industry linkages may independently correlate with high levels of intellectual property protection, even in industries where the current levels of innovative activity are low.  相似文献   

An Approach to Value-Based Modeling of Information Flows     

Nabil Kamel Murali Mohan Narasipuram Kranti Toraskar 《The Information Society》1997,13(1):93-105

This article presents a new approach to modeling information flows within today's information systems environments characterized by electronic commerce. We treat information as a resource whose value is fundamentally multidimensional in nature. In this article we consider the economic and psychological dimensions of the value of information. It is argued that it is meaningless to model the value of information in isolation away from the context and the specific parties between which this information is exchanged. We therefore focus exclusively on modeling information flows rather than information itself. To achieve this, we propose a formal framework for describing transactions involving information flows. The framework consists of a generalized model for representing information transactions and for defining a set of fundamental properties of multiparty transactions. These properties are fairness, constructiveness, and monopoly. Where applicable, they are defined for individuals, transactions, and a system of transactions. The proposed model reveals the nature of individual transactions and markets, and consequently has important implications for simulation of market scenarios and to help arrive at effective policies for pricing and market regulations.  相似文献   

基于期权理论的IS项目投资决策分析   总被引：1，自引：0，他引：1  

马大川  杨红平 《情报科学》2004,22(9):1030-1033

本文分析了传统投资决策方法中NPV法的不足，重点讨论了信息系统项目的期权性特征，并在此基础上提出了基于期权理论的IS项目投资决策思路。通过具体算例分析可知，这种投资决策方法能够充分考虑IS项目灵活性的价值，从而避免了对项目价值的低估，增加了IS类项目投资决策的科学性。  相似文献   

基于知识管理的企业信息服务研究   总被引：1，自引：0，他引：1  

程刚 《科技广场》2006,(5):4-8

文章分析了知识管理对现代企业信息服务的影响,描述了基于知识管理的现代企业信息服务模式,提出了优化知识管理环境下现代企业信息服务的对策措施。  相似文献   

关于信息技术与环境保护问题探讨   总被引：1，自引：0，他引：1  

林美容  郭东强 《情报科学》2001,19(5):452-455,461

信息技术与环境保护是当今社会的两大热门话题。本文把信息技术与环境保护联系起来进行讨论，并着重探讨利用信息技术进行环境保护以及“绿色计算机”的问题。  相似文献