虚拟企业盟主动态管理过程中信息活动和信息流分析     

林健  黄瑞华  彭晓春 《情报科学》2004,22(8):944-947,963

本文研究虚拟企业中盟主的动态管理过程中的信息活动．运用Mowshowitz过程原理构建了虚拟企业盟主动态管理过程模型，详尽分析了盟主动态管理中的信息活动的特征和过程模型各阶段内的信息流．  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   

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   

新发和烈性传染病的防控与生物安全   总被引：1，自引：0，他引：1       下载免费PDF全文

关武祥  陈新文 《中国科学院院刊》2016,31(4):423-431

近几十年来,SARS冠状病毒、埃博拉病毒、高致病性禽流感H7N9等新发和烈性传染病接连出现,严重影响人类健康。新发和烈性传染病病原由于没有有效的疫苗和药物,具有传染性强、传播速度快、传播范围广等特点,现代生物学技术的发展使得这些病原有可能作为生物武器,威胁我国生物安全。文章分析国内外新发和烈性传染病流行现状,阐述新发和烈性传染病与生物安全的关系以及可能带来的生物恐怖威胁,探讨新发和烈性传染病防控研究的前沿技术,提出了我国新发和烈性传染病防控中存在的问题,同时针对武汉国家生物安全实验室的落成对新发和烈性传染病的防控和生物安全的防护进行了展望。  相似文献   

公平交换协议设计原则     

王芷玲  张玉清  杨波 《中国科学院研究生院学报》2006,23(4):555-560

公平交换协议与传统的安全协议有所不同，导致公平交换协议的设计原则与传统的安全协议设计原则有所区别，因此，必须根据公平交换协议的特点重新考虑一些要素。本文根据公平交换协议的特点，另外给出了4条针对公平交换协议的设计原则，并以攻击为实例来说明这些原则的重要性。这些原则与传统的安全协议的设计原则结合起来，使得公平交换协议从设计的开始就能够考虑各种可能会出现的错误与漏洞，从而大大提高协议设计的质量。  相似文献   

大学校园BBS信息流安全管理模型     

朱学召 《技术与创新管理》2006,27(3):8-11

大学校园BBS因其具有自由开放性、信息互动反馈性、及时性等突出特点而快速成为大学校园网上一个高效的信息交流平台。目前对大学校园BBS信息流管理主要是采用一般的网络信息安全管理技术,忽略了其作为交流平台在信息互动功能实现上的特殊性,导致了其在信息流的安全管理方面不力,致使大学校园BBS社会效益和效应低下。通过调查分析,依据网络安全信息技术构建了大学校园BBS信息流安全管理模型。  相似文献   

农村医疗保障财政责任的制度变迁     

李莉 《软科学》2007,21(1):76-79

从制度变迁视角,以实施农村家庭承包责任制改革、推出新型农村合作医疗制度为分界点,将新中国成立以来农村医疗保障的发展历程划分为前农村改革阶段、农村改革阶段和后农村改革阶段,研究不同历史阶段政府在农村医疗保障事业中所承担的财政责任,并指出政府在农村医疗保障中承担财政责任的轨迹是:从间接支持到回避责任,再到直接承担责任。  相似文献   

Incorporating blockchain technology in information systems research     

《International Journal of Information Management》2023

In this Editorial Note for the special issue on "Incorporating Blockchain Technology in Information Systems Research," we first focus on the need on conducting blockchain research in the information systems field. We briefly describe the nine outstanding articles that were selected for publication in this special issue. The editorial note ends with a research agenda for future scholars interesting in studying the blockchain phenomenon.  相似文献   

E-Commerce to Protect the Network Relationships: The Case of Taiwan's PC Industry     

Tain-Jy Chen 《The Information Society》2003,19(1):59-67

Although Taiwan is one of the world's leading producers of information products, it lags behind advanced countries in the application of information technologies. The strength of Taiwan's industry lies in its low-cost manufacturing capabilities, which in recent years have been undermined by rising wages. Faced with a massive relocation of production activities to China, the Taiwanese government is trying to prevent the hollowing out of domestic industry by encouraging local firms to embrace new information technologies to strengthen their ties to multinational firms. The initiative aims at enhancing the flexibility of production and speeding up responses to the market through concerted actions by brand marketers, parts suppliers, and assemblers. New technologies underscore new working methods that erect entry barriers to protect existing network relationships.  相似文献